SOLUTION: The side of a square is 5 cm. shorter than the side of an equilateral triangle. The perimeter of the square is 7 cm. less than the perimeter of the triangle. Find the lengths of a

Question 291025: The side of a square is 5 cm. shorter than the side of an equilateral triangle. The perimeter of the square is 7 cm. less than the perimeter of the triangle. Find the lengths of a side of the square and of a side of the triangle.
Answer by Greenfinch(383) (Show Source): You can put this solution on YOUR website!
Side of square is X, side of triangle is X+8
perimeter of square is 4X, perimeter of triangle is 3X + 24
We are told that 4X + 7 = 3X + 24
or X = 17
So side of square is 17, side of triangle is 25
perimeter of square is 68, perimeter of triangle is 75
It checks
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