It is a plane area enclosed by five straight lines.
The boy had to find the area and perimeter of the pentagon.
The perimeter of a pentagon is the sum of its 5 sides
Any 5 sided polygon is a pentagon. There is no formula for it. We have formulas for area and perimeter. Perhaps that is what you are asking?
show me what a pentagon shape looks like
You add all the sides of the pentagon together.
a shape with 5 sides
Pentagon
180° (n - 2), where n is the number of sides.
knowing that the outer wall is 921 feet and using A=(half)(apothem)(perimeter) you can determine the inside walls to be about 338 feet ... check my math though! if that be the case, then the inside pentagon has an area of 4.5 acres (use trig and formula above) ... google it and the Pentagon has an area of 29 acres ... 29+4.5 and you get 33.5 which is the are of a pentagon with side 921. hope this helps.
A = s2 * 1.72
dim dim
360 wrong i don't know