Question
The ratio of the length and area of a rectangle is 1:39.
And the ratio of length and breadth 4:3. Find the perimeter of ​​the rectangle.Solution
ATQ, Let the length of rectangle = x cm Then area of rectangle = 39x cm Breadth or rectangle = area/length = 39x/x = 39 cm Length = 4/3 of breadth = 4/3 Ă— 39 = 52 cm Perimeter of rectangle = 2Ă— (l + b)Â = 2Ă—91Â = 182 cm
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