SOLUTION: An isosceles triangle has two sides of equal length.The length of the third side is 3 ft less than twice the length of an equal side.Find the length of the third side when the peri

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Question 662355: An isosceles triangle has two sides of equal length.The length of the third side is 3 ft less than twice the length of an equal side.Find the length of the third side when the perimeter is 41 ft.
Answer by sravanik2005(14) About Me  (Show Source):
You can put this solution on YOUR website!
Let a,b,c be the lengths of sides
and a,b be equal sides given c=2a-3
perimeter=a+b+c=41
a+a+2a-3=41
4a=44 =>a=11
so,length of third side=2(11)-3=19ft