Question

An isosceles triangle has a perimeter 18 cm the length of equal sides is 4cm . What will be length of 3rd side

Answer 1

Length of equal sides = 4 cm

Perimeter of a triangle = sum of all sides = 18 cm

=> 4 + 4 + third side = 18 cm

=> 8 + third side = 18 cm

=> third side = 10 cm

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