High School Math : How to find the length of the side of an equilateral triangle

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #462 : Plane Geometry

You are given that the perimeter of an equilateral triangle is  meters. What is the length of one side of that triangle? 

Possible Answers:

 meters 

 meters

 meters 

 meters 

 meters 

Correct answer:

 meters

Explanation:

By definition, an equilateral triangle has three congruent sides. The perimeter is the sum of those sides. Thus, to find the length of just one of those sides, we can divide the perimeter of the triangle by three.

 divided by  is  meters, which is our answer. 

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