Calculate the length of the unknown side of a triangle if its perimeter is 42.9 cm and the lengths

univerkov | January 9, 2021 | education

Calculate the length of the unknown side of a triangle if its perimeter is 42.9 cm and the lengths of the other two sides are 18.7 cm and 13.6 cm.

In order to solve this problem, you need to find the length of the unknown side of the triangle.
1) First, let’s find what the sum of the other two sides of the triangle is equal to: 18.7 + 13.6 = 32.3 cm.
2) Now we find the length of the unknown side of the triangle: 42.9 – 32.3 = 10.6 cm.
We get the following answer: 10.6

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