Answer:
length x width = area
7 x 3 = 21 so the area of the rectangle is 21
divide 7 by 2 so we can find the length of each triangle. 7 / 2 = 3.5
length (or base) x height / 2 = area of triangle
3.5 x 3 = 10.5
You do not have to divide by two because there are two triangles
10.5 + 21 = 31.5 so the area is 31.5
Hope this helps
Step-by-step explanation:
