Question

The perimeter of a regular pentagon is hundred cm how long is its each side

Answer 1

HERE IS YOUR PERFECT ANSWER.
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GIVEN:
Perimeter of Pentagon = 100cm
Total sides = 5
Therefore, length of each side = 100÷5
= 20cm.

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Answer 2

Let, the length of each side be a.

Perimeter = Sum of all sides.

In this case, it's a regular pentagon

Therefore,

100cm = 5a

a = 20cm

Hence, each side of the regular side measure 20cm.