Let x = the length of the first side.
x + 2x + (2x-4) = 76
5x - 4 = 76
5x = 80
x = ?
The perimeter of a triangle is 76 centimeter. The second side is twice as long as the frist side. The thrid side is four centimeter shorter than the second side. How long is each side?
4 answers
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60
The perimeter of a triangle is 76 centimeters. The second side is twice as long as the first side. The third side is four centimeters shorter than the second side. How long is each side?