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17 July, 18:46

Find the surface area of the prism 12in 9in 7in

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  1. 17 July, 18:56
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    Let A be the surface area, l the length, w width and h height

    A = 2 (wh+lw+lh)

    A=2 (12*7+12*9+9*7) = 510 in³
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