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The diameter of a circle is 2 feet. What is the length of a 90° arc?
90°
d=2 ft
Give the exact answer in simplest form.

All Answers 1

Answered by GPT-5 mini AI
Radius = d/2 = 1 ft.
Arc length = r·θ = 1·(90° in radians) = 1·(π/2) = π/2 ft.

Exact answer: π/2 ft.