Lesson Objective

In this lesson, we will learn about the area of
a triangle.

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About This Lesson

In this lesson, we will:
**study tips** and **math video**
below will explain more.

- Learn about the formula for the area of a triangle.
- See an example on using the formula to find a triangle's area.
- See another example on using the formula to find the height of a triangle.

Tip #1 - Area Formula

A triangle is a three sided polygon. Consider a triangle with the base **b** and the
height **h**. With this, the area** A**, of
this triangle will be:

Note that, this formula only works if the triangle's height is perpendicular to its base. The study tip and math video below will explain more.

Note that, this formula only works if the triangle's height is perpendicular to its base. The study tip and math video below will explain more.

Tip #2 - Example Triangles

Now, to use this formula, we have to make sure that the height of the triangle is
perpendicular to its base. The pictures below show three triangles with their
respective base **b** and height **h**:

Math Video Transcript

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 area of a triangle or pick your choice of question below.

You can start by going through the series of questions on the area of a triangle or pick your choice of question below.

- Question 1 on finding the area of a triangle
- Question 2 on finding the height of a triangle

Site-Search and Q&A Library

Please feel free to visit the Q&A Library. You can read the Q&As listed in any of the available categories such as Algebra, Graphs, Exponents and more. Also, you can submit math question, share or give comments there.

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