13. The vertices of a triangle are A (0, 0), B (3, 8), and

C (9, 0). What is the area of this triangle?

36units^2

Step-by-step explanation:

we want to split this triangle into two different triangles, triangle 1 will have verticies (0,0) (3,8) and (3,0). Triangle 2 will have verticies (3,0) (3,8) and (9,0).

next we want to find the area of each of the triangles using the formula 1/2 (base) (height)

Once you do this its just a matter of adding the two areas together.

1/2 (3) (8) + 1/2 (6) (8) = 12+24=36