The diagram below shows a cross-section of a bottle. The lower part ABC is a hemisphere of radius 5.2cm and the upper part is a frustrum...

      

The diagram below shows a cross-section of a bottle. The lower part ABC is a hemisphere of radius 5.2cm and the upper part is a frustrum of a cone. The top radius of the frustrum is one third of the radius of the hemisphere. The hemisphere part is completely filled with water as shown in the diagram.

(a) Determine the height of the frustrum part.
(b) Find the surface area of the frustrum part of the bottle.

  

Answers

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sharon kalunda answered the question on April 29, 2019 at 12:30

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