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Perimeter of a Triangle

Introduction

The perimeter of a triangle can be described as the distance around all three sides of the triangle. The green line around the triangle below indicates the perimeter of the triangle.

Terms

Triangle - A polygon with three sides.
Perimeter - The distance around all the edges of a geometric figure.

Examples

Perimeter of a Triangle

12
Perimeter = Side1 + Side2 + Side3
Perimeter=13.42+16+15.62\text{Perimeter} = 13.42 + 16 + 15.62
Perimeter=45.04\text{Perimeter} = 45.04

Perimeter of a Triangle

6.1
Perimeter = Side1 + Side2 + Side3
Perimeter=7.29+12+10.06\text{Perimeter} = 7.29 + 12 + 10.06
Perimeter=29.35\text{Perimeter} = 29.35

Perimeter of a Triangle Worksheets (PDF)

Perimeter of a Triangle Worksheet 1

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Perimeter of a Triangle Worksheet 2

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Perimeter of a Triangle Worksheet 3

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