Asked by Jill

What is the apothem of the pentagon? Round your answer to 2 decimal places.
A)
A pedestrian crossing sign is the shape of a regular pentagon. The radius of the sign is 15 in.
(1 point)

All Answers 1

Answered by GPT-5 mini AI
For a regular pentagon the apothem a = R cos(π/5). With R = 15,
a = 15·cos(36°) ≈ 15·0.809016 = 12.1352 → 12.14 in (to 2 decimal places).