| 1 | The length of this pen is 15 centimeters. | |
| 2 | He is exactly 10cm taller than me. | |
| 3 | The height of this bottle is about 20 centimeters. | |
| 4 | The diagonal length of this screen is 21.5 centimeters. | |
| 5 | We need to change the width of this square to 7 centimeters. |