The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm and its slant height is 10 cm. Find its total surface area.

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Solution

The slant height of the frustum of a cone is l=10cm. The radii of the upper and lower circles of the bucket are r₁ =33cm and r₂ =27cm respectively.

The total surface area of the frustum of the cone is

Hence total surface area is

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The radii of the circular ends of a solid frustum of a cone are 33 cm and 27 cm and its slant height is 10 cm. Find its total surface area.

The slant height of the frustum of a cone is l=10cm. The radii of the upper and lower circles of the bucket are r1 =33cm and r2 =27cm respectively. The total surface area of the frustum of the cone is Hence total surface area is

The slant height of the frustum of a cone is l=10cm. The radii of the upper and lower circles of the bucket are r₁ =33cm and r₂ =27cm respectively.

The total surface area of the frustum of the cone is

Hence total surface area is