SOLUTION: 100-gon with a radius of 5 what is the area

Question 748546: 100-gon with a radius of 5
what is the area
Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

If you know the radius (distance from the center to a vertex), then area will be:
where is the number of sides and is the radius
if

then

or, you can do it this way:

, where is the radius and the number of sides

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
100-gon with a radius of 5
what is the area
=====================
As the number of sides increases, the area approaches that of a circle.
100 is a lot of sides.

Area =~ 78.54 sq units

RELATED QUESTIONS
What is the area of a 20-gon with a radius of 2 mm? Please... (answered by KMST)
what is the area of the regular 20-gon with radius 9... (answered by Alan3354)
What is the area of a 15-gon with a perimeter of 90ft? (answered by Alan3354)
What is the area of a regular 15-gon with a side length of... (answered by Alan3354)
What is the area of a regular 15-gon with a perimeter of 180 yds. (answered by Edwin McCravy)
What is the area of a 40-gon with a side length of 4... (answered by Alan3354)
I'm totally lost. The question is "Show that the area of a regular n-gon with radius r is (answered by richard1234)
Find the area of an equilateral triangle (regular 3-gon) with the given measurement if... (answered by solver91311)
Find the area of an equilateral triangle (regular 3-gon) with the given measurement.... (answered by richwmiller)