Question

the two equal sides of a triangle are each 5 M less than twice the third side if the perimeter of the triangle is 55 M find the length of its sides

Answer 1

Let the length of third side b a unit length of equal side =(2a-5) unit
Now, perimeters = 55

a+(2a-5)+(2a-5)=55

5a=65

a=13

So the length of sides are 13m ,21m and 21 m.

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