09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Exercise 13.8 | Question 1
Example 1: Find the volume of a sphere whose radius is (i) 7cm (ii) 0.63m Ex: 13.7 | Question 9 Question 2
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 16
Example 16: Monica has a piece of canvas whose area is 551 m2. She uses it to have a conical tent made, with a base radius of 7 m. Assuming that all the stitching margins and the wastage incurred while…
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 12
Example 12: A child playing with building blocks, which are of the shape of cubes, has built a structure as shown in Fig. 13.25. If the edge of each cube is 3 cm, find the volume of the structure built…
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 19
Example 19: A hemispherical bowl has a radius of 3.5 cm. What would be the volume of water it would contain? Example 18 Class 9 | Home
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 18
Example 18: A shot-putt is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm3, find the mass of the shot-putt. Example 17 Example 19
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 15
Example 15: The height and the slant height of a cone are 21 cm and 28 cm respectively. Find the volume of the cone. Example 14 Example 16
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 14
Example 14: At a Ramzan Mela, a stall keeper in one of the food stalls has a large cylindrical vessel of base radius 15 cm filled up to a height of 32 cm with orange juice. The juice is filled…
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 13
Example 13: The pillars of a temple are cylindrically shaped (see Fig. 13.26). If each pillar has a circular base of radius 20 cm and height 10 m, how much concrete mixture would be required to build 14 such pillars?…
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09
Dec
Class 9 | Chapter 13 | Surface areas and Volumes | Example 11
Example 11: A wall of length 10 m was to be built across an open ground. The height of the wall is 4 m and thickness of the wall is 24 cm. If this wall is to be built up…
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