How do you find out the area of a trangle?

Answer 1

The area of a triangle is half the height x width or..

Area = 1/2 x height x width = 1/2 h x w

To understand why, think about how you can always take two identical triangles and form a parallelogram with them.

Now think about what the area of that parallelogram would be. To do that, imagine cutting it up so that it forms a rectangle.