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The formula for finding a rectangle's perimeter is 2(l+w).

Here, length is given as 12 m & width as 6m. So, the correct answer is

2(l+w)

=2(12+6)

=2 x 18

=36m.

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A rectangle has a length of 12m and a width of 6m what are the perimeter and area of this rectangle?

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