A wire in the form of a circle of radius 3 5 m is bent in the form of a rectangule whose length and ...........

Quantitative Aptitude ( CCS) Mensuration 2D

A wire in the form of a circle of radius 3.5 m is bent in the form of a rectangule, whose length and breadth are in the ratio of 6 : 5. What is the area of the rectangle?

60 cm²

30 cm²

70 cm²

40 cm²

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Explanation:

The circumference of the circle is equal to the permeter of the rectangle.
Let l = 6x and b = 5x 2(6x + 5x) = 2 * 22/7 * 3.5
=> x = 1
Therefore l = 6 cm and b = 5 cm Area of the rectangle = 6 * 5 = 30 cm²

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