A circular wire of radius 42cm is cut and bent into the form of a rectangle whose sides are in the ratio of 6:5. The smaller side of the rectangle is: Choices: A) 30cm B) 60cm C) 72cm D) 132cm. E) 142cm.
Length of wire= circumference of circle of radius 42cm= (2* 22/7* 42)= 
<gadget id="calculator">(2* 22/7* 42)</gadget>
<output>264</output>
264cm.   Therefore, perimeter of rectangle= 264 cm.   Let, length= 6x cm &amp; breadth= 5x cm.   Therefore, 2 (6x+5x)= 264 or x=12.   Therefore, smaller side= 60 cm   ANSWER:60cm
<result>B</result>
A circular wire of radius 42cm is cut and bent into the form of a rectangle whose sides are in the ratio of 6:5. The smaller side of the rectangle is: