how many inches is in a ruler
Look at the rule. There are many little lines on the ruler. But only 12 of these lines are numbered. The numbered lines are the inch lines. It is one inch from the end of the ruler to the first numbered line. It is one inch from one numbered line to another numbered line. Measure these lines: Answer 1 3 5 Look at the ruler. Â½ Â½ 1 From the left end of the ruler to 1 is one inch. This inch is divided into two equal parts by a line.
Shorter rulers are convenient for keeping in a pocket. Longer rulers, e.g., 18 inches (45 cm) are necessary in some cases. Rigid wooden or plastic yardsticks, 1 yard long and meter sticks, 1 meter long, are also used.