Question

a regular pentagon has an apothem of 3.2 and an area of 37.2 cm. What is the length of one side of the pentagon?

Answers

Reiny
area of one triangle = 37.2/5 = 7.44 cm

area = (1/2)base x height
7.44 = (1/2)(base)(3.2)
base = 2(7.44)/3.2)
= ...
Steve
Or, using the formula area = 1/2 * apothem * perimeter,

that will give you the perimeter. 1/5 of that will be the side length.
Anonymous
the answer is 4.65 because I took the quick check and it was right.
E
1: 45°
2: 67.5°
3 (this one): 4.65 m
4: 288 cm²
5: 150sqrt3 in.²
brook
@E is 100% correct :)
luna
@E is correct
Banshee
Still comes in clutch after many years

Im here doing school while your already in your 20s damn

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