73.4k views
5 votes
Calculate the area of the regular pentagon below:

Calculate the area of the regular pentagon below:-example-1
User Kelly
by
8.4k points

2 Answers

4 votes

Answer:

532.4 in²

Explanation:

The area (A) of the regular pentagon is calculated as

A = 0.5 × perimeter × apothem

Perimeter = 5 × 17.6 = 88 in

The apothem is the segment from the centre to the midpoint of one of the sides.

Here the apothem = 12.1 in, thus

A = 0.5 × 88 × 12.1 = 44 × 12.1 = 532.4 in²

User Amjad Shahzad
by
8.0k points
3 votes

Answer:

1064.8 in^2

Explanation:

12.1 x 17. 6 / 2 to find one half of a triangle will equal 106.48

there are 10 triangle therefore 106.48 x 10 = 1064.8

User Abolfazl Panbehkar
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories