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Two equal sides of a triangle are each 5 meters less than twice the third side.if the perimeter of the triangle is 55 meters,find the length of its sides



Let the length of third side be a units
length of equal sides = (2a -5) units
now, perimeter = 55
⇒a + (2a-5) +(2a-5) = 55
⇒5a =65
⇒a =13
so length of sides are 13 m, 21 m and 21 m
2 3 2
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