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Arithmetic Ability
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Q.
The diagonal of a cube is 6√3 cm. Find its surface area
A.
216 sq.cm
B.
316 sq.cm
C.
416 sq.cm
D.
516 sq.cm
View Answer
Correct choice: A
Explanation:
Let the edge of the cube be a. so, the diagonal a√3 = 6√3 => a=6 Surface area = 6a2= 6 x 6 x 6 = 216 sq.cm
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