The radius of a cone is 5cm and vertical height is 12cm. Find the area of the curved surface.
The height of a cone 21 cm. Find the area of the base if the slant height is 28 cm.
The radius and slant height of a cone are in the ratio 4:7. If its curved surface area is 792
cm2, find its radius. (Use π =22/7)
Find the capacity in litres of a conical vessel with:
(i) radius 7 cm, slant height 25 cm
(ii) height 12 cm, slant height 13 cm.
The radius and the height of a right circular cone are in the ratio 5:12. If its volume is 314 cubic meter, find the slant height and the radius. (Use π=3.14).
The radius and height of a right circular cone are in the ratio 5 : 12 and its volume is 2512 cubic cm. Find the slant height and radius of the cone. (Use π=3.14).
The capacity of a closed cylindrical vessel of height 1 m is 15.4 liters. How many square meters of the metal sheet would be needed to make it?
The ratio of volumes of two cones is 4 : 5 and the ratio of the radii of their bases is 2 : 3. Find the ratio of their vertical heights.
A cylinder and a cone have equal radii of their bases and equal heights. Show that their volumes are in the ratio 3:1.
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