Question

50 points

The diameter of a circle measures 30 yd. What is the circumference of the circle?
Use 3.14 for a, and do not round your answer. Be sure to include the correct unit in your answer.

Answer 1

94.2 Yd

Explanation:

r=d/2

=30/2

=15

C=2πr

solve, 2×3.14×15

30×3.14

94.2 yd

Answer 2

C=pi(d)

C=94.25

Explanation: