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How to find the perimeter of a triangle

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How to find the perimeter of a triangle

A triangle is a polygon with three sides and three corners.

How to calculate its perimeter?

Instructions

    1

The perimeter of a triangle is the sum of the lengths of all its three sides.

Denote the sides of triangle a, b, c. Perimeter in mathematical formulas is denoted by the Latin letter P. Hence, proceeding from the rule, P = a + b + c

Let us assume that our sides of a triangle have such lengths: a = 3 cm, b = 4 cm, c = 5 cm

To find the perimeter of a given triangle, you need to add the lengths of all its sides.

Those. P = 3 + 4 + 5

P = 12 cm

Not a difficult task, is it?

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