SURFACE AREAS AND VOLUMES : SURFACE AREAS AND VOLUMES CHAPTER - 13
EXERCISE - 13.3
Take =22/7, unless stated otherwise.QUESTION 1:- A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder. : Take =22/7, unless stated otherwise. QUESTION 1:- A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.
QUESTION 2:- Metallic spheres of radii 6 cm, 8 cm and 10 cm, respectively, are melted to form a single solid sphere. Find the radius of the resulting sphere. : QUESTION 2:- Metallic spheres of radii 6 cm, 8 cm and 10 cm, respectively, are melted to form a single solid sphere. Find the radius of the resulting sphere.
QUESTION 3:- A 20 m deep well with diameter 7 m is dug and earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform. : QUESTION 3:- A 20 m deep well with diameter 7 m is dug and earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.
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