The diagram below represents a model of a pillar. The radii of the top and the base are 7cm and 3.5cm respectively. The height of...

The diagram below represents a model of a pillar. The radii of the top and the base are 7cm and 3.5cm respectively. The height of the cylindrical part is 10cm while the height of the whole pillar is 15cm.

(a) Calculate the volume of the model in cm³.
(b) Calculate the mass of the material used to construct the pillar given that the actual height of the
whole pillar is 60m and the density of the material used is 0.832g/cm³. (Give your answer in tones).

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sharon kalunda answered the question on August 15, 2019 at 11:30

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