Algebra 2 Glencoe CCSS Edition page 23 problem 43

Question

The perimeter of a regular pentagon is 100 inches. Find the length of each side.

Answer 1

Step:1

Let s = side length of the pentagon.

Pentagon has 5 equal sides, perimeter of the pentagon is given by .

Therefore, the perimeter is .

Step:2

Rewrite the equation, .

                          (Divide each side by 5)

                              (Cancel common terms)

                                  (Divide:  )

Therefore the length of each side is 20 in.

Solution:

Length of each side is 20 in.