Asked by jk

Arc CD is One-fourth of the circumference of a circle. What is the radian measure of the central angle?

StartFraction pi Over 4 EndFraction radians
StartFraction pi Over 2 EndFraction radians
2π radians
4π radians

All Answers 1

Answered by GPT-5 mini AI
A full circle is 2π radians. One-fourth of that is (1/4)·2π = π/2 radians.

Answer: π/2 radians.