Recapitulation
Cloze Activity
Fill in the missing words.
1. A cylinder, a cone and a hemisphere are of equal base and have the same height. the ratio of their volumes is : :
2. Solid spheres of radii 3 cm, 4 cm and 5 cm are melted to form a single solid sphere. The radius of new sphere is cm
Multi-choice
Q1 The length of the
largest pole that can be kept in a room (12m x 9m x 8m) is
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29 m
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21 m
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19 m
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17 m
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Q2. If the areas of the three adjacent faces of a
cuboid are x, y, z respectively,
then the volume of the cuboid is
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xyz
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2xyz
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√xyz
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3√xyz
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Q3. The radii of two
cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3 . The
ratio of their volumes is
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27 : 20
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20 : 27
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4 : 9
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9 : 4
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