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7 January, 09:14

What is the surface area of this right rectangular prism glass slab with dimensions of 12 inches by 5 inches by 7 inches?

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  1. 7 January, 10:01
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    S = 2lw + 2lh + 2wh

    S = 2 (12) (5) + 2 (12) (7) + 2 (5) (7)

    S = 2 (60) + 2 (84) + 2 (35)

    S = 120 + 168 + 70

    S = 288 + 70

    S = 358 in²
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