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Question

The curved suface area of a hemisphere is 2772 cm2 and its volume is 19404 cm3. What is its radius?

The correct answer is

21 cm

So, the radius of the hemisphere is 21 cm. Based on the given curved surface area and volume, the radius of the hemisphere is 21 cm.

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Important Questions from Solid Figures

  1. A cone and a hemisphere have equal bases and volumes. What is the ratio of the height of the cone to the radius of the hemisphere?

  2. If the surface area of a sphere is 64 π cm 2, then the volume of the sphere is:

  3. Find the surface area of a sphere of diameter 21 cm. (Use π = \(\frac{{22}}{7}\) )

  4. A cube is 7 cm of an edge and another cube is 14 cm on an edge. The ratios of their surface areas are

  5. Using three distinct points which of the following shapes cannot be formed?

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