7a. What is the circumference of a tire with a diameter of 30 in.?
**Tips: C= π*d OR C=2*π*r.
*
188.5 inches
94.2 inches
47.1 inches
706.9 inches
94.2 inches
Explanation:
Circumference = π * diameter = 3.1415 * 30 = 94.245 inches, which is approximately 94.2 inches.