How to find the perimeter of an equilateral triangle

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SSAT Upper Level Quantitative › How to find the perimeter of an equilateral triangle

Questions 1 - 8

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

Since an equilateral triangle has equal side lengths, multiply the length of one side by to find the perimeter.

$15\times3=45$

A side of an equilateral triangle has a length of . What is the perimeter of the triangle?

Since an equilateral triangle has equal side lengths, multiply one side length by to find the perimeter.

$12r\times3=36r$

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

Since the side lengths of a triangle are equal, multiply the length of one side by to find the perimeter.

The length of a side in a equilateral triangle is . Find the perimeter of this triangle.

Since an equilateral triangle has side lengths that are all the same, multiply the length of one side by to find the perimeter.

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

Since an equilateral triangle has sides that are all equal, multiply the length of one side by to find the perimeter.

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

Since an equilateral triangle has sides that are all equal, multiply the length of one side by to find the perimeter.

What is the perimeter of an equilateral triangle with a side of ?

$3\sqrt3$

$9\sqrt3$

$27\sqrt3$

An equilateral triangle has three equal sides. Since the side length is 9, multiply the side length by three to get the perimeter.

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

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