Find the perimeter of the triangle if the length of its first side is 21 cm, the length

univerkov | February 6, 2021 | education

Find the perimeter of the triangle if the length of its first side is 21 cm, the length of the second is 16 cm and the length of the third is 34 cm.

The perimeter of a triangle is the sum of the lengths of all its sides and is written in letter form as follows:

P = a + b + c.

We substitute the indicated values of the lengths of the sides of the triangle into the formula and we get:

P = 21 + 16 + 34 = 21 + 50 = 71 cm.

Answer: The perimeter of the triangle is 71 cm.

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