This math skill demonstrates how to calculate the area of a right triangle by considering it as half of a rectangle built around the triangle. Multiply the two side lengths of the rectangle and then divide by two to find the triangle's area.
Toggle Auto Play (On)
Audio Voice (Mobius Voice)
Toggle Teaching (Video)
Area of a right triangle
Test your understanding of area of a right triangle by practicing it! Work through the below exercises to use it in practice.
🎙️
Let's find the area of a right triangle with sides of length 9 and 6.
🎙️
We can think of a rectangle that surrounds it. In this case a 9 by 6 rectangle would have an area of 54.
🎙️
The area of the triangle cuts that in half, so divide 54 by 2 and you get an area of 27