If the length and breadth of a rectangle are doubled, then its perimeter is

halved

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doubled

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tripled

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none of these

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Solution

The correct option is B
doubled

Since the perimeter of the rectangle = $2 \times (length + breadth)$
$= 2 \times (2 l + 2 b) = 2 \times 2 (l + b)$
Hence, we can see perimeter is double of the initial value.

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The perimeter of a rectangle becomes ___ times its original perimeter if its length and breadth are doubled.

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