the totaal surface area of a cuboid is 40cm2 and curved surface area of a cuboid is 26cm2. find the area of its base. fast.

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Solution

total surface area of cuboid =40 sq cm.
cuurved surface area of cuboid (lateral surface area)= 26 sq cm
total surface area of cuboid = curved surface area of cuboid + area of the base +area of the top
area of the top = area of the base
40=26+2areaof the base
2 area of the base=40-26=14
area of the base =14/2= 7 cm.

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