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 Class 7 Mathematics Length, Perimeter and Area: Surface Area

The base of closed cuboid measures 4 cm by 5 cm and the height is 7cm. The base and the top parts of the cuboid are painted. What is the total surface area of the parts which are not painted?
A. 166#cm^2#
B. 126#cm^2#
C. 63#cm^2#
D. 40#cm^2#

 (5m 33s)
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