Q. 24

The unequal side of

Answer :

Let the length of the equal sides be x cm.
Then the length of the unequal sides will be (x + 3) cm.
Perimeter of an isosceles triangle is 18.∴ x + x + 3 + x = 18
3x + 3 = 18
3x = 15 ∴ x = 5
Therefore the equal sides of the triangle is 5cm and unequal side is 8cm.

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