a) 3.5 cm
b) 5 cm
c) 7 cm
d) 14 cm
Answer: c
Explanation: Length of rectangle paper = Circumference of the base of cylinder
If r is the radius of the cylinder :
$$\eqalign{
& 44 = 2\pi r \cr
& r = \frac{{44 \times 7}}{{2 \times 22}} \cr
& r = 7\,cm \cr} $$
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