Formulas

Question 1

Area of rectangle

Answer 1

A = b * h

Question 2

Area of triangle

Answer 2

A = 1/2bh

Question 3

Area of circle

Answer 3

A=πr^2

Question 4

Volume of sphere

Answer 4

V=4/3πr^3

Question 5

Volume of a rectangular prism

Answer 5

V = width * height * length

Question 6

Area of a trapezoid

Answer 6

a = (a+b/2)h

Question 7

Circumference

Answer 7

C = 2πr

Question 8

Rotate 180 degrees about the origin

Answer 8

(x,y)→(−x,−y)

Question 9

Rotate 90 degrees about the origin

Answer 9

(x,y)→(−y,x)

Question 10

Rotate 270 degrees about the origin

Answer 10

(x,y)→(y,−x)

Question 11

sin

Answer 11

opp/hyp

Question 12

cos

Answer 12

adj/hyp

Question 13

tan

Answer 13

opp/adj

Question 14

Draw a 30-60-90 triangle

Question 15

Draw a 45-45-90 triangle

Question 16

Height of an equilateral triangle

Answer 16

A = 1/2s√ 3

Question 17

Area of an equilateral triangle

Answer 17

A = (s^2√ 3) over 4

Question 18

area of sector of a circle

Answer 18

A = (fraction)(area of circle)

Question 19

area of segment of a circle

Answer 19

A = (area of sector) - (area of triangle)

Question 20

length of an arc

Answer 20

(fraction)(circumference)

Question 21

surface area of a cylinder

Answer 21

2πrh + 2πr^2

Question 22

surface area of a cone

Answer 22

πrL + πr^2

Question 23

surface area of a sphere

Answer 23

4πr^2

Question 24

volume of a prism or cylinder

Answer 24

V = base area * height

Question 25

volume of a pyramid or cone

Answer 25

V = 1/3 base area * height