Mensuration of a Composite Solid: Hemisphere Minus Cone
Mensuration of a Composite Solid: Hemisphere Minus Cone
Secondary 2
A solid is formed by removing a cone from a hemisphere of diameter \(60\) cm. The base diameter of the cone is found to be half that of the hemisphere’s.
- Find the radius of the cone.
- Find the volume of the cone removed.
- Find the total surface area of the cone.
- A painter wanted to paint the total surface area of the remaining solid. Find the total area that need to be painted.
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Answer:(a) \(15\text{ cm}\) (b) \(7070\text{ cm}^3\) (c) \(2290\text{ cm}^2\) (d) \(9360\text{ cm}^2\)
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