Posted by Anonymous on Thursday, March 29, 2012 at 7:54pm.
Total height for 10 quarters
h= 0.17*10=1.7cm
Diameter = 2.2 cm, so radius,
r= 1.1 cm
Total surface area (including two ends)
A=2πr²+2πr*h
=2πr(r+h)
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