Question

Find the area. Round to the nearest tenth.

Answer 1

Explanation:

The area of a triangle is

`A=(1)/(2)bh` and we have the base (12m) and we need to find the height. Using Pythagorean's Theorem:

`6^2=4^2+h^2\\36=16+h^2\\20=h^2\\h=2√(5)`

That's the height that we will sub into the area formula:

`A=(1)/(2)(12)(2√(5))\\A=12√(5)\\A=26.8`