Register

What is the area of the regular pentagon

What is the area of the regular pentagon
asked 222k views
3 votes
What is the area of the regular pentagon

What is the area of the regular pentagon-example-1
asked
User Purva
by
8.0k points

1 Answer

0 votes

Answer:

D) 172.05 cm²

Explanation:

Area of a pentagon with side s :


A = (1)/(4) \sqrt{5(5+2√(5)) } \;s^2\\\\=(1)/(4) \sqrt{5(5+2√(5)) } \;(10)^2\\\\=(100)/(4) \sqrt{25+10√(5) } \\\\= 25\sqrt{25+10√(5) }\\\\=172.05

answered
User Samazi
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!