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maths --plse help me..

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A cuboid has total surface are 40cm^2 and its lateral surface area is 26cm^2.find the area of its base.

  • geometry -

    What you are calling a cuboid is what was called a rectangular prism when I went to school. It has width W, length L and height H. See

    Total surface area is
    2(WL+ WH + HL) = 40
    Lateral surface area (4 sides) is:
    2(WH + HL) = 26

    Therefore (Top + Base area) =
    2 WL = 14, and so
    WL = base area = 7 cm^2

  • maths --plse help me.. -


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