Shape Areas

Question 1

What is the area and circumference formula for a circle?

Answer 1

A = πr²

C = 2πr

(r = radius)

Question 2

What is the area and perimeter formula for a triangle?

Answer 2

A = 1/2 bh

P = a + b + c

(b = base, h = height)

Question 3

What is the area and perimeter formula for a rectangle?

Answer 3

A = l × w

P = 2l + 2h

(l = length, w = width)

Question 4

What is the area and perimeter formula for a square?

Answer 4

A = s²

P = 4s

(s = side length)

Question 5

What is the area and perimeter formula for a trapezoid?

Answer 5

A = 1/2(b₁ + b₂)h

P = a + b₁ + b₂ + c

(b₁, b₂ = bases, h = height)

Question 6

What is the surface area and volume formula for a box (rectangular prism)?

Answer 6

SA = 2(lw + lh + wh)
V = lwh

(l = length, w = width, h = height)

Question 7

What is the surface area and volume formula for a cube?

Answer 7

SA = 6s²

V = s^3

(s = side length)