Posted by **Anamika** on Monday, December 17, 2012 at 4:43am.

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

- geometry -
**drwls**, Monday, December 17, 2012 at 6:03am
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

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