Question

a crêpe (pronounce it like grape, except with a c!) is a type of very thin, cooked pancake usually made from wheat flour. the students in a cooking class used their large grill to cook an enormous crêpe (and since they all love math, they cooked it in the shape of a perfect circle) with a circumference of 62.8 cm! what is the area of this crêpe ? select one: a. 10 square centimeters b. 20 square centimeters c. 314 square centimeters d. 1256 square centimeters

Explanation:

Step1: Find radius from circumference

Use formula $C=2\pi r$, solve for $r$:
$r=\frac{C}{2\pi}=\frac{62.8}{2\times3.14}=10$ cm

Step2: Calculate circle area

Use formula $A=\pi r^2$:
$A=3.14\times10^2=314$ square cm

Answer:

c. 314 square centimeters