SOLUTION: A square and an equilateral have the same perimeter. Each side of the triangle is 8 cm less than twice the length of each side of the square. How long is each side of the square?

Question 179736: A square and an equilateral have the same perimeter. Each side of the triangle is 8 cm less than twice the length of each side of the square. How long is each side of the square?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Let s be the measure of a side of the square.

Then

is the measure of a side of the triangle.

The perimeter of an equilateral triangle is 3 times the length of a side. The perimeter of a square is 4 times the length of a side. Hence:

Just solve the equation for s

John

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