# Perimeter of a Triangle

Lesson Objective
In this lesson, we will learn about the perimeter of a triangle...
In this lesson, we will:
1. Learn about the formula for the perimeter of a triangle.
2. See an example on using the formula to find a triangle's perimeter.
3. See another example on using the formula to find the side length of a triangle.
The study tips and math video below will explain more.

# Study Tips

Tip #1
The triangle shown on the right has the side lengths of a, b and c. Its perimeter, P, will be the sum of all the side lengths. Hence:
P = a + b + c

The math video below will give more explanation on this. Also, we will see some examples on how to use this formula.

# Math Video

Video on the perimeter of a triangle
Video on the examples on using the formula P=a+b+c
Math Videos Transcript

# Practice Questions & More

Multiple Choice Questions (MCQ)
Now, let's try some MCQ questions to understand this lesson better.

You can start by going through the series of questions on the perimeter of a triangle or pick your choice of question below.
1. Question 1 on finding the perimeter of a triangle
2. Question 2 on finding a side length of a triangle
Site-Search and Q&A Library

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