Question

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Answer 1

pyramid:

lwh/2

=12×10×3/3

=120 ft^3

prism:

whl

=12×10×7

=840 ft^3

all together:

=960 ft^3

Answer 2

Volume of rectangular pyramid:

`v = (lwh)/(3)`

`v = (12 * 10 * 3)/(3)`

`v = 120 \: {ft}^(3)`

Volume of the rectangular prism:

`v = lwh`

`v = 12 * 10 * 7`

`v = 840 \: {ft}^(3)`

Total volume:

`v = 120 + 840`

`v = 960 \: {ft}^(3)`