The two equal sides of an isosceles triangle are 11 feet longer than the third side. The perimeter of this triangle is 56 feet. What is the length of the third (nonequal) side?

Answer 1

2(x+11)+x=56
solve for x
3x+22=56
x=(34/3)=11.33333 feet

Answer 2

x + 2(x+11) = 56

Hmm. You sure the perimeter is not 55?

Answer 3

thx @bobpursley