SOLUTION: How do you find the area of a pentagon with a side of 10 and a dodecagon with a perimeter of 108. I know the formula A=1/2aP but when i tried this none of my answers were correc

Algebra ->  Polygons -> SOLUTION: How do you find the area of a pentagon with a side of 10 and a dodecagon with a perimeter of 108. I know the formula A=1/2aP but when i tried this none of my answers were correc      Log On


   



Question 251121: How do you find the area of a pentagon with a side of 10 and a dodecagon with a perimeter of 108.
I know the formula A=1/2aP but when i tried this none of my answers were correct.

Answer by nyc_function(2741) About Me  (Show Source):
You can put this solution on YOUR website!
What answer did you get? I got A = 540
In your equation, the letter a stand for apothem.
The apothem of a regular polygon is a line segment from the center to the midpoint of one of its sides.