Question : The difference between the total surface area and the lateral surface area of a cube of side 12 cm is:
Option 1: 292 cm2
Option 2: 290 cm2
Option 3: 288 cm2
Option 4: 286 cm2
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Correct Answer: 288 cm2
Solution : Given: Side of the cube = 12 cm. Difference = total surface area – lateral surface area = $6a^{2}-4a^{2}$ = $2a^{2}$ Putting the value of $a$, we have, = $2×12^{2}$ = 288 cm2 Hence, the correct answer is 288 cm2.
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Question : If the volume of a cube is 729 cm3, then find the total surface area of the cube.
Option 1: 484 cm2
Option 2: 482 cm2
Option 3: 488 cm2
Option 4: 486 cm2
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Option 1: 804 cm2
Option 2: 729 cm2
Option 3: 864 cm2
Option 4: 926 cm2
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Option 1: 56 cm3
Option 2: 16 cm3
Option 3: 64 cm3
Option 4: 36 cm3
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Option 1: 154 cm2
Option 2: 77 cm2
Option 3: 231 cm2
Option 4: 188 cm2
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Option 1: 1000 cm2
Option 2: 1048 cm2
Option 3: 1032 cm2
Option 4: 1120 cm2
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