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find the surface area of a prism

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find the surface area of of a prism using 9ft 7ft 5ft

surface-area-of-a-prism

asked Dec 6, 2013 in GEOMETRY by chrisgirl Apprentice

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1 Answer

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Surface area of rectangular prism is 2(lb+bh+lh)

l = 9ft, b = 7ft, h =5ft.

= 2(9*7+7*5+5*9)

= 2(63+35+45)

= 2(143)

= 286 squre ft

answered Dec 10, 2013 by william Mentor

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