Respuesta :

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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.