SOLUTION: An isosceles triangle has a perimeter of 55 cm. Find the length of one of the equal sides if the third side is 15 cm long.
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Question 62988: An isosceles triangle has a perimeter of 55 cm. Find the length of one of the equal sides if the third side is 15 cm long. Answer by benni1013(165) (Show Source):
You can put this solution on YOUR website! An isoceles triangle has two equal sides thus the two sides missing must be equal so your equation will look like this:
s+s+15=55
2s+15=55
2s=40
s=20
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