The length of each side of an equilateral triangle is decreased by 4 inches, so the perimeter is now 27 inches. What is the origin length of each side of the equilateral triangle?
2 Answers
Jan 27, 2016
The original length of the equilateral triangle was 13 inches.
Explanation:
If the perimeter of the equilateral is now 27 inches that means each side of the triangle measures 9 inches. By definition an equilateral triangle has three equal sides.
If the sides of the original triangle were decreased by 4 inches the original sides of the triangle would be 13 inches.
Jan 30, 2016
Explanation:
Let the side of the original triangle be
You have decreased the side of the
Then the algebraic expression is
There are three sides for a triangle:
So,side of triangle was