SOLUTION: The perimeter of an isosceles triangle is 120 centimeters. If the nonequal side is 30 centimeters shorter than each of the two equal sides, find the lengths of the three sides.

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Question 863366: The perimeter of an isosceles triangle is 120 centimeters. If the nonequal side is 30 centimeters shorter than each of the two equal sides, find the lengths of the three sides.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent lengths of equal sides

 x + x + (x-30cm) = 120cm 

     3x = 150cm   

      x = 50cm

lengths of the three sides are: 50cm, 50cm, 20cm