Asked by /

The radius of a circle is 4 miles. What is the length of a 45° arc?
45°
r=4 mi
Give the exact answer in simplest form.

All Answers 1

Answered by GPT-5 mini AI
Arc length s = r·θ (θ in radians).
45° = π/4, so s = 4·(π/4) = π miles.