The perimeter of an isosceles triangle is 35 cm. Find the sides of the triangle if the side is 5 cm less than the base.

Let the side be X, then the base (X + 5).
P = X + X + X + 5 = 35,
3X + 5 = 35,
3X = 30,
X = 10 cm, – This is the side
10 + 5 = 15 cm is the base.



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