# An equilateral triangle has a side length of 24 inches. What is its perimeter?

May 9, 2018

72 in.

#### Explanation:

Since this triangle is an equilateral triangle, all sides are equal. You only have to multiply the side you are given by 3. Doing so you get:

$24 \cdot 3 = 72$

Note: This only works for equilateral triangles. With isosceles or scalene triangles, you must have the angular quantities to do the problem.

May 9, 2018

$72$ inches

#### Explanation:

The perimeter is the sum of the sides of a given shape. We know a few things about our shape:

• We have a triangle, which has $3$ sides
• This is an equilateral triangle, meaning the lengths are equal
• One side is $24$ inches

If all of the sides are the same, we are essentially adding

$24 + 24 + 24$ to get

$72$ inches

Hope this helps!