The curved surface area of a right circular cylinder whose radius is 'a' units and height is 'b' units, is equal to
πa2b sq.cm
2πab sq.cm
2π sq.cm
2 sq.cm
The curved surface area of a right circular cylinder of radius 1cm and height 1cm is equal to
πcm2
2πcm2
3πcm2
2cm2
If the circumference at the base of a right circular cone and the slant height are 120πcm and 10cm respectively, then the curved surface area of the cone is equal to
1200πcm2
600πcm2
300πcm2
600cm2
Base area of a right circular cylinder is 80cm2 . If its height is 5cm, then the volume is equal to
400cm3
16cm3
200cm3
If the radius of a sphere is half of the radius of another sphere, then their respective volumes are in the ratio
1 : 8
2 : 1
1 : 2
8 : 1
The ratio of the 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.
8 : 5
6 : 5
9 : 5
7 : 5
The whole surface of a cube is 384cm2 . Find its volume.
384√6 cm3
64cm3
512cm3
96cm3
Radius and height of a right circular cone and that of a right circular cylinder are respectively, equal. If the volume of the cylinder is 120cm3 , then the volume of the cone is equal to
1200cm3
360cm3
40cm3
90cm3
If the height and the base area of a right circular cone are 5cm and 48sq.cm respectively, then the volume of the cone is equal to
240cm3
120cm3
80cm3
480cm3
The height of a right circular cylinder is x cm and diameter of the base is y cm. Find its Volume.
π y2x
½ π y2x
(1/4) π y2x
None of these
