Find the circumference (perimeter) and area of a circle with diameter 8 inches. Use $\pi$ from a calculator. Choices are rounded to the nearest tenth. A) C = 50.3 in.; A = 64 in.² B) C = 64 in.; A = 50.3 in.² C) C = 25.1 in.; A = 201.1 in.² D) C = 50.3 in.; A = 201.1 in.² E) C = 25.1 in.; A = 50.3 in.²

Question

Quizplus · Accepted Answer

The circumference $ C $ is calculated as $ \pi \times \text{diameter} $, which is $ \pi \times 8 \approx 25.1 $ inches. The area $ A $ is calculated as $ \pi \times \left(\frac{\text{diameter}}{2}\right)^2 $, which is $ \pi \times 4^2 \approx 50.3 $ square inches.

Find the Circumference (Perimeter) and Area of a Circle with Diameter