Question: A cylinder (round can) has a circular base and a circular top with vertical sides in between. Letrbe the radius of the top of the
A cylinder (round can) has a circular base and a circular top with vertical sides in between. Letrbe the radius of the top of the can and lethbe the height.The surface area of the cylinder,A, isA=2?r2+2?rh(it's two circles for the top and bottom plus a rolled-up rectangle for the side).

r = radius Areas = 1 12 h = height Area = h(2atr) Circumference 2ar
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