Geometry Definitions

That branch of mathematics which investigates the relationship, properties, and measurement of solids, surfaces, lines, and angles; the science which treats of the properties and relations of magnitudes; the science of the relations of space.


Line


In geometry a line:

·         is straight (no curves),

·          has no thickness, and

·         extends in both directions without end (infinitely)


Line segment:


If it does have ends it would be called a "Line Segment".

"Line" normally means straight, so say "curve" if it has a curve.

The word "segment" is significant, because a line normally extends in both directions without end.


angle-angle-angle (AAA) similarity


The amount of turn between two straight lines that have a common end point (the vertex). An acute triangle is a triangle with all angles lesser than 90 degrees.

The angle-angle-angle (AAA) relationship test says that if two triangles have corresponding angles that are congruent, then the triangles are similar. Because the sum of the angles in a triangle must be 180°, we really only need to know that two pairs of corresponding angles are congruent to know the triangles are similar.

The centroid of a triangle is the point where the three medians meet. This point is the center of mass for the triangle. If you cut a triangle out of a piece of paper and put your pencil point at the centroid, you could balance the triangle.Having problem with Surface Area Sphere keep reading my upcoming posts, i will try to help you.


Congruent


Two figures are congruent if all corresponding lengths are the equal, and if all corresponding angles have the same measure. Colloquially, we say they "are the same size and shape," though they may have different orientation. (One might be rotated or flipped compared to the other.)

Sat Geometry Problems

Introduction of sat geometry:
The Abbreviation of SAT is Scholastic Aptitude Test. This test is used for admission to college in United States. The total time has given for SAT test is 70 minutes.There are two sections , one section is given 50 minutes, another section is given 20 minutes.

Topics of sat geometry:

Area and perimeter of a polygon in sat geometry

Area and circumference of a circle in sat geometry

Volume of a box, cube and cylinder in sat geometry

Pythagorean Theorem in sat geometry

Coordinate geometry in sat geometry

Slope

Triangles


SAT Geometry Problems


Problem1:

Which one of these have the largest volume?

Square based prism with sides 7

Rectangular prism of dimensions 5x5x4

Rectangular prism of dimensions 5x6x8

Cylinder of base radius 3 and height 6

Cylinder of base radius 3 and height 8

Problem 2:

My triangular prism has a triangle base with base 5 and height 6, and the prism has a height of 7. What is the volume of the triangular prism?

96

24

100

84

105

Problem 3:

My shape has 4 sides. One of which are parallel. The sides are not all equatl. What shape do I have?

Parallelogram

Trapezoids

Rhombus

Prism

Problem 4:

I have a polygon with 6 equal sides that has 6 equal angles. What is the size of each angle?

180

120

90

154.3

720

Problem 5:

What is the equation of a line with slope is -2 and y intercept is -1 is ?

2x-y+2=0

2x+y+1=0

2x+y-1=0

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Problem 6:


The slope of the line 3x+4y+5 = 0 is

3/4

4/3

-3/4

Problem 7:

The straight line x+2y+7=0 passes through (3,k) then valuee of k=?

5

-5

0

Problem 8:

Equation of line parallel to y-axis and passing through the point (3,2) is ?

X = 3

x = -3

y = -3

Problem 9:

A line passing through (0,3) and (4,5) is ?

x – 2y +6 = 0

2x – y + 6 = 0

x – 2y - 6 = 0

Problem 10:

What is the perimeter of my triangle with given three vertices (2,3), (6,2) and (4,2)?

9.7

9.0

8.9

7.9

Solve Geometry Exam

Introduction to solve geometry exam:

Geometry is a branch of mathematics that can be deals with the size, shape, position of shapes, and the properties of space. The geometry is also deals with the applications such as surveying, measurements, areas, and volumes. In Theoretical geometry or pure geometry, we give proofs for theorems on the properties of geometrical figures by applying axioms and reasoning. In practical geometry, we do not construct exactly the geometrical figures but draw rough sketches of the figures to give support to our logical reasoning. I like to share this Quadrilateral Formula with you all through my article.


Example problems to solve geometry exam:


Example problems to solve geometry exam are as follows:

1) The side length of cube is 10 cm. Find the volume of the cube.

Solution:

Formula for volume of the cube = a^3.
a= side length of the cube.

a=10 cm.

= (10)^3.

Volume of the cube =1000 cm^3.
This is the solution for the given geometry problem.


2)A triangle has a perimeter of 56. If 2 of its sides are equal and the third side is 8 more than the equal sides, what is the length of the third side?

Solution:

Let y = length of the equal side


Perimeter = sum of three sides.
Plug in the values from the question.
56 = y + y + y + 8

Combine like terms
56 = 3y + 8

3y = 56 – 8 (by equating the given equation)
3y = 48
y =16

Note: the third side is 5 more than the equal sides.

So, the length of third side = 16 + 8 =24

Answer: The length of third side is 24



Additional problems to solve geometry exam:


Additional problems to solve geometry exam are as follows:

1)The ratio of two supplementary angles is 12 to 6. Find the measure of each angle.

Solution:

Let measure of smaller angle = 12x, measure of larger angle = 6x.
12x + 6x = 180° (The sum of supplementary angles is 180°.)

18x = 180°

x = 10°
Then, 12x = 12(10°) and 6x = 6(10°).

So, 12x = 120° and 6x = 60° (by equating the given equation)

The angles have measures of 120° and 60°.
This is the solution for the given geometry example problem.

Geometry Terms and Definitions

Introduction to learning geometry terms and definitions:
Geometry is a branch of mathematics which  deals with the study of different shapes. Also learning the geometry terms and definitions include certain constructions of geometry such as lines, angles, plane etc., the word geometry is derived from the two words ‘geo’ meaning ‘earth’ and ‘metron’ meaning measuring. The geometry of plane figures are known as Euclidian geometry or plane geometry. I like to share this Skew Lines Examples with you all through my article.


Learning Terms and definitions of geometry:


There are various terms and definitions involved in geometry. Some of the terms and definitions involved in geometry for learning are listed below:

1. Point:

In geometry a point is a location in space with a dot on a piece of paper is known as point.

2. Mid point:

A segment that can be divides into two with equal length are known as mid point.

3. Square:

It has all the sides are equal with angles are equal to 90°. Then their diagonals are equal and they bisect at right angles.

4. Line:

The region where two points connects via the shortest path and continues indefintely in both the directions is referred as a line.

5. Line segments:

In geometry a line segments is a part of a line between the two points.

6. Perpendicular line segments:

If a line segments that intersect or cross at an angle of 90°. Then is it known as perpendicular line segments.

7. Parallel line segments:

If a line segments that never intersect or they can always in the same distance apart is known as parallel line segments.

8. Parallelogram:

The opposite sides are equal and parallel and opposite angles are equal. The diagonals are bisect to each other. Understanding Volume of Rectangular Prism is always challenging for me but thanks to all math help websites to help me out.


Learning terms and definitions of geometry for triangles and circles:


Learning terms and definitions of geometry for triangles and circles includes the following:

1. Right angle:

Angle that measures 90° is referred as right angle

2. Rectangle:

Their opposite sides are equal and parallel with the angles are equal to 90°..

3. Acute angle:

Angle that measures less than 90° is referred as acute angle

4. Obtuse angle:

An angle that measures more than 90° is referred as Obtuse angle.

5. Isosceles triangle:

A triangle with two equal length sides and also with two equal internal angles is referred as an isosceles triangle.

6. Equilateral triangle:

If a triangle has the equal length on all three sides, then it is referred as equilateral triangle.

7. Circles:

A circle has a locus of all points which equidistant from the center of a point.

8. Circumference:

The distance around a circle is called the circumference of a circle.

9. Concentric circles:

If the circles having the same centre but different radii are called concentric circles.

10. Tangent of circle:

If a line perpendicular to the radius, then, it can touches only one point on the circle.

Geometry Tests

Introduction:

Geometry is a part of mathematics. It used to calculate the measurements of angles, lines, surfaces and solid shapes. Geometry is using for depicting all kinds of shapes and their properties. Please express your views of this topic Tangent Line Problem by commenting on blog.

There are two main classifications in Geometry.

1) Plane Geometry

2) Solid Geometry


Example problems:


Problem 1: Find the volume of cone with radius 6 cm and height 10 cm.

Solution:

Given: Radius = 6 cm

Height = 10 cm.

Volume of cone = `(1/3)` * ` pi` * radius2 * height

= `(1/3)` * 3.14 * 62 * 10

= 0.33 * 3.14 * 36 *10

= 373.032 cubic cm.

The volume of cone is 373.032 cubic cm

Problem 2: Find the Perimeter of Parallelogram for the side a is 5 and side b is 9.

Solution:

Given: Side a = 5

Side b = 6

Perimeter of Parallelogram P = (2 * 5) + (2 * 9)

P = 10 + 18

P = 28

The Perimeter of Parallelogram is 28


Problem 3: Find the circle area and circumference radius with 6 cm.

Solution:

Given: Radius = 9 cm

Area of Circle = `pi ` * radius2

= 3.14 * 62

= 3.14 * 36

= 113.04 square cm.

The Area of Circle is 113.04 square cm

Circumference of Circle = 2 * `pi` * radius

= 2 * 3.14 * 9

= 37.68 cm

The circumference of circle 37.68 cm

Problem 4: Find the Area of triangle with height 3 cm and Base 4 cm.

Solution:

Given: Height = 3 cm

Base = 4 cm

Area of Triangle = (1/2) * height * base

= 0.5 * 3* 4

= 6 square cm

The Area of Triangle 6 square cm

Problem 5: Find the Area of Triangle with height 10 cm and Base 12 cm.

Solution:

Given: Height = 10 cm

Base = 12 cm

Area of Triangle =(1/2) * height * base

= 0.5 * 10* 12

= 60 square cm

The Area of Triangle =  60 square cm

Problem 6: Find the Perimeter of Parallelogram of  the side a is 7 and side b is 8.

Solution:

Given: Side a = 7

Side b = 8

Perimeter of Parallelogram P = (2 * 7) + (2 * 8)

P = 14 + 16

P = 30

The Perimeter of Parallelogram = 30

Problem 7: Find the circle area and circumference radius with 7 cm.

Solution:

Given: Radius = 9 cm

Area of Circle = π * radius2

= 3.14 * 72

= 3.14 * 49

= 153.86 square cm

The area of circle 153.86 square cm

Circumference of Circle = 2 * π * radius

= 2 * 3.14 * 7

= 43.96 cm

The Circumference of Circle = 43.96 cm

Solving Geometric Angles

Introduction for solving geometric angles:

The figure which consists of two rays with the same starting point and the angle which can be formed by the two arms on either side of the initial point and it is the vertex angle .There are different types of angles which based on their measuring degrees. Now we are going to see about the solving of geometric angles.


Types of solving geometric angles:


The different types of solving geometric angles is given by,

Right angle

Acute angle

Obtuse angle

Straight angle

Complementary angle

Supplementary angle

Right angle:

A right angle whose measure is 90°, is called a right angle.
Acute angle:

An acute angle whose measure is less than 90° is called an acute angle.

30°, 60°, 70° etc are all acute angles.

Obtuse angle:

An Obtuse angle whose measure is greater than 90° is called an Obtuse angle

120°, 135°, 140° etc are all Obtuse angle

Straight angle:

A Straight angle whose measure is 180° is called a Straight angle

Complementary angle:

A complementary angle is nothing but the sum of two angles measures 90° are called complementary angles.

30°, 60° are complementary angles .

Supplementary angle:

A supplementary angle is nothing but the sum of the two angles which measures 180° are called Supplementary angles.

120°, 60° are Supplementary angles. I have recently faced lot of problem while learning geometry tutoring online free, But thank to online resources of math which helped me to learn myself easily on net.


Example for solving geometric angles:


Ex1:

A geometric angle is 14° more than its complement. What is its measure?

Sol:

Let x° be the required angle.

Its complement=90°-x°

By the given condition:

90°-x°+14°=x°

2x°=104°

X°=52°

Hence required angle=52°

Ex2:

The measure of an geometric solving angle is double the calculate of its supplementary angle. Find its measure.

Sol:

Let the required angle =x°.

Its supplementary angle =180°-x°

By the given condition =2(180°-x°)

=360°-2x°

=120°

Hence required angle=120°

Ex3:

The two supplementary angles are the ratio2:3.Find the angles .

Sol:

Let the two angles in degrees be 2x and 3x

By the given condition=2x+3x=180°

5x=180°

X=36°

Hence the required angles are 2×36°=72° and

3×36°=108°

Geometry Practice Problems

Introduction for learning geometry problem answers:

The subdivision  of mathematics concerned with the properties of lines, curves and surfaces usually divided into pure, algebraic and differential geometry in accordance with mathematical techniques utilized.  The figures of two dimensions is called planes. learning Geometry problem answers is a module of math which involves about the study of shapes, lines, angles, dimensions, relative position of figures etc. it plays vital role in real time application like elevation, projection. Learning geometry problems answers provides many foundational skills and helps to build the thinking skills of logic, deductive reasoning, and analytical reasoning.Let us learn geometry problem answers. I like to share this What are Similar Triangles with you all through my article.


learning geometry problem answers:


A triangle has a perimeter of 56. If 2 of its sides are equal,then the  third side is 5 more than the equal sides, what is the length of the third side?

Solution:

Let y = length of the equal side
perimeter of triangle.

Perimeter of a  triangle = sum of all the 3 sides.
Plug in values of question.
56 = y + y + y + 5

Combine like terms
56 = 3y + 5

3y = 56 – 5
3y = 51
y =17

Note: the third side is 5 more than the equal sides.

So, the length of third side = 17 + 5 =22

Answer: The length of third side is 22.

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learning geometry problem answers:


The perimeter of a rectangle is 400 meters and its length is 3 times its width W. Find Width and Length, and the area of the rectangle.

Solution:

Use the perimeter formula to write.

2 L + 2 W = 400
"its length is 3 times its width W" into a mathematical equation as follows:

L = 3 W
We substitute L = 3 W in the equation 2 L + 2 W = 400.

2(3 W) + 2 W = 320
Expand and group like terms.

8 W = 400
Solve for W.

W = 50 meters
Use the equation L = 3 W to find L.

L = 3 W = 150 meters
Use the formula of the area.

Area = L x W = 150 * 50 = 7500 meters 2.