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Mathematics

1 answer:

Gekata [30.6K]2 years ago

7 0

AO and OA is answer.......

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Help and explain

krok68 [10]

Answer:

The surface area of the composite figure is 1108 square inches.

Step-by-step explanation:

The surface area of the composite figure ( $A_{T}$ ) is equal to the sum of external faces of the rectangular and triangular prisms, all measured in square inches:

$A_{T} = 20\,in \times 12\,in + 2\times 5\,in \times 12\,in + 2\times 20\,in \times 5\,in + 2\times 20\,in \times 11\,in + 2\times \frac{1}{2}\times 12\,in \times 9\,in$