IX CLASS SURFACE AREA AND VOLUME (VOLUME OF SPHERE AND EMISPHERE) Q. 11.The radius of a hemispherical vessel whose volume is 1241.856 cm3 is Q. 12.If the radius of a sphere is tripled, what is the ratio of the volume of the original sphere to that of the second? Q. 13.A hemispherical bowl has radius 5.25 cm. The volume of water it would contain is Q. 14.If the radius of a sphere is reduced by a factor of 3. Its volume is Q. 15.Six hemispherical bowls each of radius 21 cm are melted and recasted into a sphere. The volume of the new sphere is Q. 16.A bead is made of metal of radius 2 cm. If the density of the metal is 10.5 gm/cm3. Calculate the mass of the bead. Q. 17.Find the volume of a hemispherical vessel whose total surface area is 462 cm2 Q. 18.Find the height of a cone of radius 15 cm which is formed by melting a sphere of radius of radius 30 cm. Q. 19.Find the capacity of a hemispherical vessel, if circumference of its top is 308 cm2. Q. 20.The surface area of a sphere is 5544 cm2. Calculate its volume.
Posted on: Thu, 26 Sep 2013 18:01:41 +0000
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