1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Surface Area of Cylinders Stage 6 - Year 12 General Mathematic (HSC)
2 Surface Area Closed Cylinder Top A 1 = r 2 Bottom A 2 = r 2 Middle Curved Surface A 3 = 2 r x h Circumference Surface Area = 2 r22 r2 + 2 rh closeda Nb. A closed cylinder has a lid. h End of Slide
3 Surface Area Cylinder 5cm 4cm SA = 2 r rh = 2 x x x x 4 x 5 ≈ cm 2 End of Slide
4 Surface Area Open Cylinder No Top Bottom A 2 = r 2 Middle Curved Surface A 3 = 2 r x h h Surface Area = r2 r2 + 2 rh openno Nb. An open cylinder has no lid. End of Slide
5 Surface Area Cylinder 5cm 4cm SA = r rh = x x x 4 x 5 ≈ cm 2 End of Show