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(1) Remain the same (2) Decrease by 30% (3) Decrease by 15% (4) Decrease by 18.75% |
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Answer» If the breadth and height are halved, while the length is doubled, then the total area of the four walls of the room willdecreaseby 30%. The area of the room is calculatedby the concept of the lateral surface areaof the cuboid. |
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