The length of the first side of the triangle is 28 cm, the second is 2 times less, and the length

univerkov | August 9, 2021 | education

The length of the first side of the triangle is 28 cm, the second is 2 times less, and the length of the third side is 18 cm. Find the pyrimeter of this triangle.

1. From the problem statement we know that the length of the first side of the triangle is 28 cm.

2. Determine what is the length of the second side of a given triangle, if we also know that it is 2 times less than the length of its first side. We get:

28/2 = 14.

3. And since we also know that the length of the third side is 18 cm, therefore we can calculate what the perimeter of this triangle is. To do this, we need to add the lengths of all sides of this triangle.

P = 28 + 14 + 18 = 60 cm.

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