If the length and breadth of a rectangle are doubled then its perimeter is (1) tripled (2) doubled (3) made half (4) None of these
If the length and breadth of a rectangle are doubled then its perimeter is
(1) tripled (2) doubled (3) made half (4) None of these
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(2) Let the initial length and breadth be l and b, respectively.
So, the initial perimeter = 2 (l + b)
The final perimeter = 2 (2l + 2b) = 4 (l + b)
Now, Final perimeter/Initial perimeter = 4(l + b)/ 2( + b)= 2
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