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What is the surface area of a rectangular prism with a length of 20 inches, width of 40 inches and height of 50 inches? Please help! Thank you!

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devishri1977

Answer:

Step-by-step explanation:

l= 20 in ; b = 40 in;   h = 50 in

Surface Area = 2*(lb+bh+hl)

= 2*(20*40 + 40*50 + 50*20)

=2*(800 + 2000 + 1000)

=2*3800

= 7600 square inches

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