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the perimeter of rectangle is 40 m it is length is 4m is less than 5 times is breadth find the area of the rectangle |
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Answer» PERIMETER of RECTANGLE = 40m formula= 2(l+B) l= 4-5b b=b =2(4-5b + b) =2(4-4b) =8-8b= 40m =8b = 40-8 =8b. = 32 =b. =32/8 b= 4 now, l=5 x 4= 20-4 =16 b= 4 area = lb = 16x4 =64 |
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