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The perimeter of an equilateral triangle is 9 inches more than the perimeter of a​ square, and the side of the triangle is 6 inches longer than the side of the square. Find the side of the triangle.

 Aug 26, 2020
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The perimeter of an equilateral triangle is 9 inches more than the perimeter of a​ square, and the side of the triangle is 6 inches longer than the side of the square. Find the side of the triangle.

 

The perimeter of the square is:   4x 

 

The perimeter of the triangle is:   3 ( x + 6 )      or       4x + 9

 

4x + 9 = 3 ( x + 6 ) smiley

 Aug 26, 2020

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