Finding the Area of A Triangle

To find the area of a triangle, you can use two ways. The first way, is to find the area of a parallelogram or a rectangle, and cut it in half. Pretend the area of a rectangle is 36. Since you cut the rectangle in half, you cut the area in half. So, 36 divided by two equals eighteen. The area of this triangle is 18 cm2.

The second way is to measure the triangle from the top corner down to the base of the triangle. Multiply the base by the height of the triangle. Then you will have the area of the triangle.