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The sides of a rectangle are in the ratio of 6: 5 and its area is 1331 sq.m. Find the perimeter of a rectangle.

A.120 m
B.121cm
C.121m
D.None of These
Answer and Feedback
Answer:C
Feedback:Let 6x and 5x be sides of the rectangle
6x × 5x = 1331
11x2 = 1331
x2 = 1331/11 = 121 => x = 11
Length = 6x = 6 × 11 = 66
Breadth = 5x => 5 × 11 = 55
Perimeter = 2 (l+b) => 2 (66+55) = 121 m

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