# The lengths of the sides of the triangle are 15 cm, 17 cm and 13 cm. Find the perimeter of the triangle

August 23, 2021 | education

| **The lengths of the sides of the triangle are 15 cm, 17 cm and 13 cm. Find the perimeter of the triangle, the length of which is 2 times the lengths of the sides of the given triangle.**

To solve the problem, we first find the doubled lengths of each side of the triangle.

To do this, we multiply the known values by 2 in turn.

In this case, we get:

15 * 2 = 30 cm.

17 * 2 = 34 cm.

13 cm * 2 = 26 cm.

In order to determine the perimeter of any triangle, you must use the following formula:

P = a * b * c.

Where, P is the perimeter of the rectangle.

a, b, c – sides of the rectangle.

Substituting these numerical values into the formula, we get:

P = 30 + 34 + 26 = 90 cm.

Answer.

The perimeter of this triangle is 90 centimeters.

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