SSAT Upper Level Math : How to find the length of the side of an equilateral triangle

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

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Example Questions

Example Question #1 : How To Find The Length Of The Side Of An Equilateral Triangle

An equilateral triangle has a perimeter of  units. What is the length of each side?

Possible Answers:

 units

 units

 units

 units

Correct answer:

 units

Explanation:

Because an equilateral triangle has three sides that are the same length, divide the given perimeter by 3 to find the length of each side.

Example Question #2 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of a equilateral triangle is . In meters, what is the length of a side of this triangle?

Possible Answers:

Correct answer:

Explanation:

Since all three sides are equal in an equilateral triangle, we can just divide the perimeter by 3 to find a side length.

Example Question #3 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of an equilateral triangle is . What is the length of a side of this triangle?

Possible Answers:

Correct answer:

Explanation:

Because all the sides in an equilateral triangle are equal, we can just divide the perimeter by 3 to find the length of a side.

Example Question #4 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of an equilateral triangle is . What is the length of one side of the triangle?

Possible Answers:

Correct answer:

Explanation:

Since an equilateral triangle has sides that are all the same, divide the perimeter by  to get the length of each side.

Example Question #5 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of an equilateral triangle is 39 meters. In meters, how long is one side of the triangle?

Possible Answers:

Correct answer:

Explanation:

An equilateral triangle has sides that are the same length. Then, to find the length of one side, you only need to divide the perimeter by 3.

Example Question #6 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of an equilateral triangle is . What is the length of one side of this triangle?

Possible Answers:

Correct answer:

Explanation:

Since an equilateral triangle has three equal sides, divide the perimeter by  to find the length of each side.

Example Question #7 : How To Find The Length Of The Side Of An Equilateral Triangle

The perimeter of an equilateral triangle is . What is the length of one side of this triangle?

Possible Answers:

Correct answer:

Explanation:

Since an equilateral triangle has three equal sides, divide the perimeter by  to find the length of one side.

Example Question #8 : How To Find The Length Of The Side Of An Equilateral Triangle

What is the difference between an equilateral triangle and a scalene triangle? 

Possible Answers:

The sum of their side lengths 

The number of side lengths 

Their color 

The sum of their angle measurements

The length of their sides

Correct answer:

The length of their sides

Explanation:

Of the choices listed, the main difference between an equilateral triangle and a scalene triangle is their side lengths. An equilateral triangle has to have  equal sides, but a scalene triangle can have all different side lengths. 

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