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- The sides of a rectangle are in the ratio of 6 : 5 and its area is 1331 sq.
Question 1:
The sides of a rectangle are in the ratio of 6 : 5 and its area is 1331 sq.m.Find the perimeter of rectangle.
A. 120 m
B. 121 cm
C. 121 m
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
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
D. None of these
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