Geometry Class
Sunday, April 14, 2013
How do we calculate the surface area of a cylinder?
SA(cylinder)= LA + 2B
LA= 2pi.r.h
2B= 2(area of base)
2(pi.r.r)
LA= 2pi.r.h + 2B=
2(pi.r.r)
2pi.3.6
2(pi.3.3)
2pi.18 2(pi.9)
36pi +
18pi
SA=54pi
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