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Question

Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is the length of third side

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Solution

Given two sides of the triangle are 12cm and 14cm

the perimeter of triangle =36cm

Let the length of the third side =acm

the perimeter of triangle = sum of the length of sides of the triangle.

Accoreding to problem,
12+14+a=36

26+a=36

a=3626

a=10

length of the third side of triangle =10cm

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