Question

Determine the approximate circumference of a circle with diameter 18 units.

A. 56.5 units
B. 9.4 units
C. 113.1 units
D. 28.3 units

Answer 1

Answer: 56.549 or 56.5

Explanation:

C= (pie) 3.14 * d = 2 * 3.14 * r

D= 18

C = 3.14 * 18 = 18 * 3.14

C = 56.549 or 56.5