Math Sec 2 – Volume & Surface Area of Cylinder and Cone.

The  volume of a cone and a cylinder are very similar except that the cone is 1/3 the volume of a cylinder.  If you ate an ice-cream cylinder instead of an ice-cream cone, you will have consume 3 times more.

  The total surface area of  closed cylinder includes both circular base at the top and bottm: $2πr^2 + 2πrh$, while an open cylinder excludes the top circular base : $πr^2 + 2πrh$.

A cone’s total surface area combines a curved (lateral) surface and a flat circular base. The formula is $πrl + πr^2$, where $πrl$ represents the curved surface and $πr^2$ is the area of the circular base.

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