Measure the sides and add them together
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The boy had to find the area and perimeter of the pentagon.
measure the sides
The perimeter of a pentagon is the sum of its 5 sides
You would not be able to find the perimeter of a pentagon without knowing the lengths of the sides. The perimeter is just all the side lengths added together, you should have 5 values to add.
Perimeter = All of the lengths of he sides added upPentagon has 5 sides60/5 = 12