Question

A circle’s circumference is approximately 76 cm. Estimate the radius, diameter, and area of the circle.

Use 3.14 for
π
and round your answers to the nearest whole number.

a. The radius is approximately____cm.

b. The diameter is approximately___cm.

c. The area is approximately___cm2.

Answer 1

a. 12.1
b. 24.19
c. 459.64

Answer 2

R = 12, D = 24, A = 460

Explanation:

76/3.14 = 24 = D

24/2 = 12 = R

12^2 * 3.14 = 460 = A