Answers

2016-03-10T20:29:16+05:30
Side forms its circumference.
2Πr^2=12
r^2=42÷11
r=√3•81
r=1•95
CSA=2Πrh
=2×22÷7×1•95×12
=147•09
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2016-03-10T20:46:22+05:30
Since the cylinder is made of square paper so
CAS of cylinder = area of sqaure sized paper
                          =12*12
                          =144 cm. sq.
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