Methodical recommendation:
Theory
| Number | Name | Description |
|---|---|---|
| 1. | Surface area of a sphere | Learn surface area of a sphere and their properties. |
| 2. | Surface area of a hemisphere and hollow hemisphere | Learn surface area of a hemisphere and their properties. |
Practice Questions
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Say "true" or "false" | Other | easy | 2 m. | Remember the formulas of a sphere and hemisphere and say whether the given statement is true or false. |
| 2. | Find the radius of a sphere | Other | easy | 3 m. | Practice problem to find the radius of a sphere when surface area is given. |
| 3. | Find the ratio of surface area of the balloons | Other | medium | 4 m. | Problem to find the ratio of surface area of the balloons in two cases using surface area formula. |
| 4. | Find the radius and surface area of a hemispherical solid | Other | medium | 4 m. | Work on the problem to find the radius and surface area of a hemispherical solid. |
| 5. | Determine C.S.A. and T.S.A. of the shell. | Other | hard | 6 m. | Try to find surface areas of the shell using the given information. |
| 6. | Five marks exercise problem I | Other | hard | 5 m. | Try to solve the problem to find the answers using surface areas of sphere, hemisphere and frustum. |
| 7. | Evaluate the cost of manufacturing the footballs | Other | hard | 4 m. | Work on the problem to find the cost of manufacturing the footballs. |
| 8. | Five marks example problem II | Other | hard | 5 m. | Work on the problem to find the answers using surface areas of sphere, hemisphere and frustum. |