143k views
2 votes
Find the area of a regular pentagon whose apothem is 25.1 and perimeter is 182

1 Answer

2 votes
If the perimeter is 182, each of its sides are 182/5=36.4

The area of any regular polygon can be expressed as:

a(n,s)=ns^2/(4tan(180/n)) where n=number of sides and s=side length...

a(5,36.4)=2279.56 units^2 (to nearest one-hundredth of a square unit)
User Jbryer
by
8.6k points