Posted by Anonymous on Sunday, January 30, 2011 at 11:22am.
an isosceles triangle has a perimeter of 136 inches. If one of its equal sides measures 42 inches, what is the measure of the nonequal side?

geometry  MathMate, Sunday, January 30, 2011 at 11:47am
Let the sides be A, A and B.
A being one of the equal sides, and B the third side.
"an isosceles triangle has a perimeter of 136 inches."
means that
A+A+B = 136 .... (1)
and
"If one of its equal sides measures 42 inches"
means A=42, this makes equation (1):
42+42+B = 136
and we look for the value of B.
Can you take it from here?

geometry  Anonymous, Sunday, January 8, 2012 at 9:03pm
b=52
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