Question

Find the area of the right triangle below.
9m
4m

Answer 1

18 m²

Explanation:

The area is the size of a 2-dimensional shape.

Area of a Triangle

The formula for the area of a triangle is
`(1)/(2)bh`, where b is the base and h is the height.

This formula comes from the fact that a triangle is half of a rectangle. Remember that the area of a rectangle is the base times the height, so a triangle would be half of this.

Solving for Area

The base of the triangle is 9 meters. Then, the height is 4 meters. So, we can plug these values into the formula.

• 
  `A=(1)/(2)*4m*9m`

So, A = 18. Then, since meters are being multiplied by each other, the units are meters squared. The final answer is 18 m².