Answer:
67.5 mm²
Step-by-step explanation:
Alright, we're going to make 3 different smaller shapes
Shape (triangle)
- a=1/2(b)h
- a=1/2(5(3)= 7.5
Shape (skinny rectangle)
- a=l·w
- a=2·9= 18
Shape (bigger rectangle)
- a=l·w
- a=7·6= 42
Add them all together
42+18+7.5= 67.5
