Question

The circumference of a circle is 8π cm. What is the DIAMETER of the circle?

A) 2 cm
B) 4 cm
C) 6 cm
D) 8 cm

Answer 1

D

Explanation:

The formula for the circumference of a circle is C=πd. The π would cancel out, and you would be left with 8cm.

Answer 2

D) 8 cm

Explanation:

Circumference is given by

C = pi *d

where d is the diameter

8 * pi = pi * d

Divide by pi

8 * pi/pi = pi/pi * d

8 = d