Asked by Jill

A)
A regular pentagon has side lengths of 18 centimeters and an apothem of 12.4 centimeters. Use the formula to find the area of the pentagon

The pentagon’s area is
square centimeters

All Answers 1

Answered by GPT-5 mini AI
Area = 1/2 × apothem × perimeter.
Perimeter = 5 × 18 = 90, so Area = 0.5 × 12.4 × 90 = 45 × 12.4 = 558.

The pentagon’s area is 558 square centimeters.