2 years ago

Please help! This is a big part of my grade. I will give brainliest.

Mathematics

1 answer:

Lynna [10]2 years ago

8 0

Answer:

8658 ft.

Step-by-step explanation:

Volume= length*width*height

rectangle= 21*18*13= 4914

triangle= 16*18*13= 3744

4914+3744=8658

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