Geometry Area and Volume

1. A cylindrical pencil sharpened at one edge is the combination of

• two cylinder

• a hemisphere and a cone

• a cone and a cylinder

• frustum of a cone and a cylinder

2. A shuttlecock used for playing badminton has the shape of the combination o

• a cylinder and a sphere

• a sphere and a cone

• a cylinder and a hemisphere

• a frustum of a cone and a hemisphere

3. The total surface area of a hemispherical solid having radius 7 cm is

• 462

• 294

• 588

• 154

4. A solid formed on revolving a right angled triangle about its height is

• a cylinder

• sphere

• right circular cone

• two cone

5. The surface area of a sphere is 616 sq cm. Its radius is

• 7

• 14

• 21

• 28

6. A cylinder and a cone are of same base radius and of same height. The ratio of the volume of the cylinder to that of the cone is

7. The sum of curved surface area of glass having radii 3 cm and 4 cm respectively and slant height 10 cm is

• 55

• 110

• 220

• 440

8. If two solid hemispheres of same base radius are joined together along their bases, then curved surface area of this new solid is

• 750

• 75

• 1500

• 375

Two cubes each with 6 cm edge are joined end to end. The surface area of the resulting cuboid is ____

• 36

• 216

• 360

• 3.6