SOLUTION: each side of the equilateral triangle is 4 m shorter then twice the length of each side of the square their perimeters are the same. how long is each side of the triangle?

Algebra ->  Triangles -> SOLUTION: each side of the equilateral triangle is 4 m shorter then twice the length of each side of the square their perimeters are the same. how long is each side of the triangle?      Log On


   

Question 896166: each side of the equilateral triangle is 4 m shorter then twice the length of each side of the square their perimeters are the same. how long is each side of the triangle?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Write it this way:

Each side of the equilateral triangle is 4 m shorter than twice the length of each side of the square. Their perimeters are the same. How long is each side of the triangle?


s = side for the square
x = side for the triangle

4s=3x, perimeters are equal.
x=-4%2B2s, also from description.

You can use any method you want. Substitution is ready to use immediately.

4s=3%28-4%2B2s%29
4s=-12%2B6s
-2s=-12
highlight%28s=6%29