The lengths of the sides of a triangle are y, y + 1, and 7 centimeters. If the perimeter is 56 centimeters,
what is the value of y?
To find the perimeter of a triangle, simply add up the sides.
y + y + 1 + 7 = 56 {added given sides and set equal to given perimeter} 2y + 8 = 56 {combined like terms} 2y = 48 {subtracted 8 from each side} y = 24 {divided each side by 2} Ask Algebra House Comments are closed.

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