Two equal sides of triangle are is 5 meters less then twice the third side. If the perimeter of the triangle is 55 meter, find the leanth of its sides
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Define x:
Let the third side be x cm
the two equal sides are 2x - 5
Solve x:
The perimeter is 55m
x + (2x - 5) + (2x - 5) = 55
x + 2x - 5 + 2x - 5 = 55
5x - 10 = 55
5x = 65
x = 13 m
Find the length of the sides:
The third side = x = 13m
The two equal sides = 2x - 5 = 2(13) - 5 = 21 m
Answer: The length of the sides are 13m, 21m and 21m
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