Problema Solution
A triangular pennant has two sides the same length. The third side is 9 inches shorter than either of the equal sides.The perimeter of the pennant is 57 inches. How long is the shortest side?
Answer provided by our tutors
Let 'x' the length of the shortest side.
The other two equal sides are 9 inches longer than the shorter side, that is, they are: x + 9 inches long
The perimeter is 57 inches means:
x + 2(x + 9) = 57
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click here to see the equation solved for x
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x = 13 in
The shortest side is 13 inches long.