Question

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Answer 1

Volume of rectangular pyramid:

$v = \frac{lwh}{3}$

$v = \frac{12 \times 10 \times 3}{3}$

$v = 120 \: {ft}^{3}$

Volume of the rectangular prism:

$v = lwh$

$v = 12 \times 10 \times 7$

$v = 840 \: {ft}^{3}$

Total volume:

$v = 120 + 840$

$v = 960 \: {ft}^{3}$

Answer 2

pyramid:

lwh/2

=12×10×3/3

=120 ft^3

prism:

whl

=12×10×7

=840 ft^3

all together:

=960 ft^3