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length = 3¾ = 15/4m
breadth = 1½ = 3/2m
to find area
area of rectangle = l xb
= 15/4 x 3/2m²
= 45/ 8m²
to find perimeter
perimeter of rectangle = 2(l+b)
= 2 ( 15/4m + 3/2m)
=2 ( 15/4 m+ 3x2/2x2m)
= 2 (15/4m + 6/4)m
. =2 x 21/ 4m
= 21/2m
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