Geometry Formulas

Question 1

What is the acronym used for trigonometry?

Accepted Answer

SOH-CAH-TOA

Question 2

What is the formula for perimeter of any 2D shape?

Accepted Answer

P = add up all sides

Question 3

What is the formula for perimeter of a rectangle?

Accepted Answer

P = l + w + l + w, P = 2l + 2w

Question 4

What is the formula for Pythagorean Theorem?

Accepted Answer

√(a2+b2) = c, a2 + b2 = c2

Question 5

What is the formula for Volume of a Rectangular Pyramid?

Accepted Answer

V = (1/3)Bh, V = (1/3)lwh

Question 6

What is the rule for a 90∘ rotation about the origin?

Accepted Answer

(x, y) → (-y, x), swap x and y, then change sign of first number

Question 7

What is the formula for the Volume of a Rectangular Prism?

Accepted Answer

V = lwh, V = Bh

Question 8

What is the formula for area of a triangle?

Accepted Answer

A = bh/2, A = lw/2

Question 9

What is the formula for Volume of a Triangular Pyramid?

Accepted Answer

V = (1/3)Bh, V = (1/3)(lwh)/2, V = (1/3)(bh1/2)h2

Question 10

What is the formula for Volume of a Cone?

Accepted Answer

V = (1/3)Bh, V = (1/3)πr2h

Question 11

How could you find the missing angle using trigonometry?

Accepted Answer

inverse trig ratios, cos-1, tan-1, sin-1

Question 12

What is the rule for a 180∘ clockwise rotation about the origin?

Accepted Answer

change sign of x and y, (x, y) → (-x, -y)

Question 13

What is the rule for a 180∘ rotation about the origin?

Accepted Answer

change sign of x and y, (x, y) → (-x, -y)

Question 14

What is the formula for Volume of a Cylinder?

Accepted Answer

V = Bh, V = πr2h

Question 15

What is the formula for Volume of any Prism?

Accepted Answer

V = Bh

Question 16

What is the rule for a 270∘ clockwise rotation about the origin?

Accepted Answer

(x, y) → (-y, x), swap x and y, then change sign of first number

Question 17

What is the formula for Distance?

Accepted Answer

√((x1 - x2)2 + (y1 - y2)2)

Question 18

What is the formula for Surface Area of a Cylinder?

Accepted Answer

SA = 2πr2 + πrh, SA = 2πr(r + h)

Question 19

What is the formula for Midpoint?

Accepted Answer

(x1 + x2)/2 , (y1 + y2)/2

Question 20

What is the formula for area of a rectangle?

Accepted Answer

A = bh, A = lw

Question 21

What is the ratio used with the tangent function?

Accepted Answer

opposite leg / adjacent leg

Question 22

How many degrees does every triangle's angles add up to?

Accepted Answer

180

Question 23

What is the formula for Volume of any Pyramid?

Accepted Answer

V = (1/3)Bh

Question 24

What is the formula for area of a circle?

Accepted Answer

A = πr2

Question 25

What is the rule for a 270∘ rotation about the origin?

Accepted Answer

swap x and y, then change sign of second number, (x, y) → (y, -x)

Question 26

What is the formula for perimeter of a triangle?

Accepted Answer

P = s1 + s2 + s3 (s = side)

Question 27

What is the ratio used with the cosine function?

Accepted Answer

adjacent leg / hypotenuse

Question 28

What is the formula for Volume of a Triangular Prism?

Accepted Answer

V = (bh1/2)h2, V = Bh, V = (lwh)/2

Question 29

What is the formula for Surface Area of a Rectangular Prism?

Accepted Answer

SA = 2(lw + wh + lh), SA = 2(lw) + 2(wh) + 2(lh)

Question 30

What is the formula for circumference of a circle?

Accepted Answer

C = 2πr, C = πd

Question 31

What is the ratio used with the sine function?

Accepted Answer

opposite leg / hypotenuse

Question 32

What is the rule for a 90∘ clockwise rotation about the origin?

Accepted Answer

(x, y) → (y, -x), swap x and y, then change sign of second number

Question 33

How do you find the Surface Area of any 3D figure?

Accepted Answer

Find the area of each 2D face shape, then add them all up.

Geometry Formulas

Questions 33

Geometry Formulas

Questions 33