### Home > MC1 > Chapter 2 > Lesson 2.1.1 > Problem 2-9

2-9.

Use a ruler to measure the length of your thumb in inches or centimeters. Then find three different objects and use your thumb (do not use a ruler) to estimate the length of each object. Record the length of your objects in customary units (inches or centimeters).

You can measure common household items. Try your textbook or pencil.