Geometry

Question 1

What is the formula for area of a triangle?

Answer 1

Area = 1/2 Base x Height

A = 1/2 B*H

Question 2

What do the interior angles of a triangle add up to?

Answer 2

180 degrees

Question 3

What is an isosceles triangle?

Answer 3

A triangle with two sides of equal length and the two angles are the same as well

so = two equal sides and two equal angles

Question 4

What is a quadrilateral?

Answer 4

Any figure with four sides

Question 5

What is the formula for the area of a parallelogram?

Answer 5

A = b * h

Question 6

What is the formula for the area of a rectangle?

Answer 6

A = l * w

Area = length * width

Question 7

What is the formula for the perimeter of a rectangle?

Answer 7

P = 2w + 2l

Perimeter = 2width + 2length

Question 8

What is the formula for the perimeter of a square?

Answer 8

Perimeter = 4side

P = 4s

Question 9

What do you know if a triangle is a right triangle with two equal sides?

Answer 9

You know that the angles are 45 45 90

Question 10

If you have a right triangle in which the hypotenuse is twice the length of one leg what do you know?

Answer 10

You know that the angles are 30 - 60 - 90

AND the leg that is half the length of the hypotenuse is opposite the 30 degree angle

Question 11

What is the Pythagorean theorem? And what is it used for?

Answer 11

a^2 + b^2 = c^2

and it is used to calculate the missing side length of a triangle

For right triangles!!

Question 12

Which value in the Pythagorean theorem is always the greatest? And also the hypotenuse?

Answer 12

c!

a^2 + b^2 = c^2

c^2 is the greatest value and the hypotenuse

Question 13

In triangles there is always a relationship between what two things?

Answer 13

An angle and the side that is across from that angle

Biggest angle across from biggest side
Smallest angle across from smallest side
Medium angle across from medium side

if an angle is equal to another angle then the sides across from them will be equal

Question 14

Big rule for right triangles?

Answer 14

Use Pythagorean theorem!!

Question 15

What is the hypotenuse?

Answer 15

The side of a triangle across from the 90 degree angle

Question 16

What are the Pythagorean triples?

What types of triangles do they apply to?

Answer 16

Right triangles
The biggest side is always the hypotenuse

3: 4:5
5: 12:13
6: 8:10
7: 24:25

and any multiples of these triples works too

Question 17

Parallelograms

Answer 17

Opposite sides are parallel and opposite sides are equal

Question 18

what is the formula for the area of a parallelogram?

Answer 18

a = bh

Question 19

How many faces are there in every rectangular solid?

Answer 19

6

Question 20

What can faces be measured in terms of?

Answer 20

area

Question 21

to find the surface area of a rectangular solid what do you need to do?

Answer 21

to find the surface area of a rectangular solid, find the sum, of the area of the 6 faces

Question 22

what are the vertices of a rectangular solid and how many are there?

Answer 22

the vertices are the corner of a rectangular solid

there are always 8 vertices

vertex and vertices are the same thing

Question 23

what is the one-dimensional side on a rectangular solid?

Answer 23

an edge, think the pencil line

Question 24

how many edges are there in a rectangular solid?

Answer 24

12 edges in a rectangular solid

Question 25

To get the volume of a rectangular solid you multiply what?

Answer 25

the length x width x height

Question 26

what is the formula for volume of a cylinder?

Answer 26

V = pir r^2 * h