What will happen to the area of a rectangle, if its length and breadth both are trebled ?
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if the length and breadth of the rectange is trebled then the area of the rectange will become nine times more than its original
like if the original length is l and breadth is b
area becomes l×b
if l and b are trebled
new length will be 3l
new breadth will be 3b
are will be 3l × 3 b
which comes out to be 9lb or simple 9 (l×b)
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