SOLUTION: Okay, I have to find the area of a regular polygon. This question is: Find the area of a pentago with a side of 10 ft. I keep getting 216.5, but the answer is 172. How did

Question 382616: Okay, I have to find the area of a regular polygon.
This question is:
Find the area of a pentago with a side of 10 ft.
I keep getting 216.5, but the answer is 172. How did I mess up?
Found 2 solutions by solver91311, rfer:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

I don't know how you "messed up" because you didn't share any of your calculations, but mess up you certainly did.

To find the area of a regular pentagon, square the side length and multiply by the factor

John

My calculator said it, I believe it, that settles it

Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
Use the equation.
A=1.72048*s^2
A=1.72048*10^2
A=1.72048*100
A=172.048
round off to
A=172
This works for a regular pentagon
RELATED QUESTIONS
How to find the area of a regular polygon, it is a triangle with side measuring 6... (answered by Alan3354)
Find the area of the regular polygon. Give the answer to the nearest tenth. Pentagon with (answered by macston)
How do I find a side length of a polygon if I only know the area? I specifically need to (answered by Alan3354)
a regular polygon has 10 sides.the area is 200 cm^2 find the length of radius and length... (answered by josgarithmetic)
In geometry ch11 how do i find the perimeter and area of a regular... (answered by Alan3354)
How do you find the area of a regular... (answered by Alan3354)
FInd the area of each polygon. Round your answers to the nearest tenth. A regular... (answered by Alan3354)
find the side length of a 15-sided regular polygon with apothem a=6 and area A= 282... (answered by Alan3354)
find the area of a regular dodecagon with side 4cm (answered by favegirl13)