ISEE Upper Level Math : Pentagons

Study concepts, example questions & explanations for ISEE Upper Level Math

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Example Questions

Example Question #133 : Geometry

If a pentagon has a perimeter of 85in, what is the length of one side of the pentagon?

Possible Answers:

Correct answer:

Explanation:

A pentagon has 5 equal sides.  We know the formula to find perimeter of a pentagon is

where a is the length of one side of the pentagon.  Now, we know the total perimeter is 85in.  Knowing this, we will substitute into the formula. We get

 

 

 

 

Therefore, the length of one side of the pentagon is 17in.

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