The total surface area of a cube of edge 2y cm is
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Answer:
24 y^2.
Step-by-step explanation:
6*(2y)^2
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Step-by-step explanation:
+ y)2 = x2 + 2xy + y ... (x + y + z)2 = x2 + y2 + z2 + 2xy + 2xz + 2yz (x - y - z)2 = x2 + y2 ...
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