Question
A circular wire of radius 42 cm is bent in the form of a rectangle whose sides are in the ratio of 6 : 5. The smaller side of the rectangle is :
Answer: Option D
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Length of wire = `2 pi R = (2 xx 22/7 xx 42)` cm = 264 cm.
Perimeter of rectangle = `2(6x + 5x) cm = 22x cm`
`:.` `22x = 264`
`hArr x = 12`
Smaller side = (5 x 12) cm = 60 cm.
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