What is the area of this triangle?

A^3

?

ft

fť

9 ft

2 ft

A = 18 ft2

2 ft

A^3

2 ft

5 ft

A^2 = 10 ft2

2 ft

To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.

Step-by-step explanation:

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