Mensuration

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

Write true or false in the given blanks: (Q1 - Q5)
1. A cylinder, hemisphere and cone stand on equal base and same height, the Volume ratio is 3:2:1.
2. The radius of a solid sphere is 24 cm. 8 spheres can be made from it of 12cm radius.
3. Radius of the cone is doubled and height is halved, the volume will be halved.
4. A cylinder radius is halved and height is doubled, the volume will become halved.
5. A cube can be formed by joining two or more cuboids.
Fill the appropriate blanks: (Q6 - Q10)
6. A cylinder radius is doubled and height is halved, the curved surface area of the cylinder will be . (Increased / Decreased / Same)
7. The radius of the sphere is 7 cm, the surface area of the sphere is

{cm}^{2}

.
8. Three cubes whose sides are 6 cm, 8 cm and 10 cm. They are melted and form a big cube. The volume of the big cube is

{cm}^{3}

.
9. The lateral surface area of a cube is

256 m^{2}

, the volume is

m^{3}

.
10. The plastic paint in a Asian paint container is sufficient to paint an area equal to

93.75 m^{2}

. The number of blocks of dimensions

22.5 c m \times 10 c m \times 7.5 c m

that can be painted out of this container is .

Mensuration

Gap-fill exercise