Calculate the perimeter of a triangle if the length of one side is 12 cm of the other 15 and the third is 5 cm less

univerkov | April 5, 2021 | education

First side – 12 cm;

Second side. – 15 cm;

Third side. – 5 less than the second;

Find the perimeter of the treugs.

The perimeter of a triangle is the sum of its sides (12 cm, 15 cm and (15 – 5) cm).

Let’s write the calculation of the perimeter in the problem as an expression:

12 + 15 + (15 – 5) = 37 (cm).

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