-
A cylindrical pencil of diameter 1.2 cm has one of its ends sharpened into a conical shape of height 1.4 cm. The volume of the material removed is
-
- 1.056 cm³
- 4.224 cm³
- 10.56 cm³
- 42.24 cm³
- 1.056 cm³
Correct Option: A
| Volume of removed material = πr²h - | πr²h = | πr²h | ||
| 3 | 3 |
| = |  | × | × 0.6 × 0.6 × 1.4 |  | cu.cm. | ||
| 3 | 7 |
= 1.056 cu. cm.
