![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The perimeter P of a rectangle is given by the formula,
\P = 2L + 2W
\= 2 (L + W) ( Where L is the length and is W is the width of the rectangle.)
\ ![\"\"](\"/userfiles/image/Library/rect7.gif\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
The perimeter P of a rectangle is
\P = 2 (7 m + 12 m) (Substitute L = 12 m and W = 7 m)
\= 2 X 19 m (Add : 7 + 12 = 19)
\ = 38 m (Multiply : 2 X 19 = 38) ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
Perimeter of rectangle is 38 m.
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