Answer:
198 m³
Step-by-step explanation:
Find the area of the triangular prism.
3 × 4 × 1/2 × 9
= 54
Find the area of the rectangular prism.
4 × 4 × 9
= 144
Add their areas.
144 + 54 = 198
The area of the composite shape is 198 m³.
Done
Ok
