maths plse help me..
posted by Anamika .
A cuboid has total surface are 40cm^2 and its lateral surface area is 26cm^2.find the area of its base.

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
http://www.mathsisfun.com/cuboid.html
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 
7spm
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