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5 April, 08:50

Door is 77 inches high, 35.25 inches wide and 1,75 inches thick how much paint is needed

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  1. 5 April, 09:02
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    If you wanted to paint the entire door (even the top and bottom which people don't usually paint)

    the surface area is

    SA=2 (LW+LH+WH)

    where L=length, W=width and H=height

    given

    L=35.25

    W=1.75

    H=77

    SA=2 (35.25*1.75+35.25*77+1.75*77)

    SA=2 (61.6875+2714.25+134.75)

    SA=2 (2910.6875)

    SA=5821.375

    you need enough paint to cover 5821.375 square inches of door
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