Area of triangles


The area of triangles can be found by using the following formula. As you can see, to find the area, just multiply the base by the height and divide the result by 2.



The figure below illustrates what base and height are

Height of a triangle
The red line represents the length of the base (call it b if you want) and the blue line represents the length of the height.

To get the area, just multiply the value of the base by the value of the height and divide the result by 2.

Example #1

Find the area for the following figure:
Base and height of a triangle
Area computation
The area is 18 square inches or 18 inches2

Example #2 Find the area for the following figure:

Base and height of an obtuse triangle


The area is equal to (4 ×3)/2 or 12/2

The area is 6 inches2

Example #3

Find the area for the following figure:

Base and height of a right triangle


The area is (5 × 6)/2 = 30/2

The area is 15 inches2

Take the quiz below to see how well you can find the area of a triangle.




Recent Articles

  1. Factoring using the Box Method

    Sep 18, 19 01:16 PM

    Factoring using the box method. Common pitfalls to avoid when using this method.

    Read More

New math lessons

Your email is safe with us. We will only use it to inform you about new math lessons.

            Follow me on Pinterest

Math quizzes

 Recommended

Scientific Notation Quiz

Graphing Slope Quiz

Adding and Subtracting Matrices Quiz  

Factoring Trinomials Quiz 

Solving Absolute Value Equations Quiz  

Order of Operations Quiz

Types of angles quiz


Tough algebra word problems

Tough Algebra Word Problems.

If you can solve these problems with no help, you must be a genius!

Recent Articles

  1. Factoring using the Box Method

    Sep 18, 19 01:16 PM

    Factoring using the box method. Common pitfalls to avoid when using this method.

    Read More

K-12 math tests


Everything you need to prepare for an important exam!

K-12 tests, GED math test, basic math tests, geometry tests, algebra tests. 

Real Life Math Skills

Learn about investing money, budgeting your money, paying taxes, mortgage loans, and even the math involved in playing baseball.