Perimeter of a Triangle

We will discuss here how to find the perimeter of a triangle. We know perimeter of a triangle is the total length (distance) of the boundary of a triangle.

The perimeter of a triangle ABC

Perimeter of a Triangle

                    = AB + BC + CA

                    = 2 cm + 4 cm + 3 cm,

(add the length of each side of the triangle).

                     = 9 cm

Perimeter of the triangle = Sum of the sides.


Let us consider some of the examples on perimeter of a triangle:

1. Find the perimeter of a triangle having sides 3 cm, 8 cm and 6 cm.

Examples on Perimeter of a Triangle

Perimeter of a triangle

                   = Sum of all the three sides

                   = AB + BC + AC

                   = 3 cm + 8 cm + 6 cm

                   = 17 cm


2. Find the perimeter of a triangle whose length of three sides are 8 cm, 11 cm, 13 cm.

To find the perimeter of the triangle, we add all the sides together.

Perimeter of a triangle

                  = Sum of all the three sides

                  = 8cm + 11 cm + 13 cm

                  = 32 cm

Related Concepts

Units for Measuring Length

Measuring Instruments

To Measure the Length of a Line-segment

Perimeter of a Figure

Perimeter of a Triangle

Perimeter of a Rectangle

Perimeter of a Square

Unit of Mass or Weight

Examples on Unit of Mass or Weight

Units for The Measurement of Capacity

Examples on Measurement of Capacity

Measurement of Time

Read a Watch or a Clock

Antemeridian (a.m.) or Postmeridian (p.m.)

What Time it is?

Time in Hours and Minutes

24 Hour Clock

Units of Time

Examples Units of Time

Time Duration

Calendar

Reading and Interpreting a Calendar

Calendar Guides us to Know




4th Grade Math Activities

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