Question

The total surface area of a cube is 486 cm.sq . Find its lateral surface area.

Answer 1

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Answer:

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Step-by-step explanation:

Let side of cube be a

TSA of cube = 6a²

6a²=486

a²=486/6

a²=81

a=9

LSA of cube = 4a²=4×9×9=4×81

324cm²

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