geometry

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an isosceles triangle has a perimeter of 136 inches. If one of its equal sides measures 42 inches, what is the measure of the non-equal side?

  • geometry -

    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 -

    b=52

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