The circumference of a grapefruit is 4π cm. Find the surface area of the grapefruit. Express your answer in terms of π.

a) 16 pie cm2

b) 32 pie cm2

c) 64 pie cm2

d) 72 pie cm2

Question

Mathematics

Tyree Burch

9 October, 14:33

The circumference of a grapefruit is 4π cm. Find the surface area of the grapefruit. Express your answer in terms of π.

a) 16 pie cm2

b) 32 pie cm2

c) 64 pie cm2

d) 72 pie cm2

+3

Answers (1)

Know the Answer?

Davin Bryan · Answer 1

We find radius first:

C = 2 * pie * r

r = C / (2 pie) = 4 pie cm / (2 pie) = 2 cm

Now we find surface area: A = 4r˛ = 4 (2) ^2 = 16 pie cm2

Hence the surface area of the grapefruit fruit is 16 pie cm2.

The circumference of a grapefruit is 4π cm. Find the surface area of the grapefruit. Express your answer in terms of π.a) 16 pie cm2b) 32 pie cm2c) 64 pie cm2d) 72 pie cm2

The circumference of a grapefruit is 4π cm. Find the surface area of the grapefruit. Express your answer in terms of π.

a) 16 pie cm2

b) 32 pie cm2

c) 64 pie cm2

d) 72 pie cm2