There are two types of rulers: the inch ruler with fractional division, and the metric ruler with decimal. There are a total of 60 of these marks on a 30 cm ruler.
A metric ruler is use to measure centimeter(cm) and millimeter(mm), the centimeter is a unit of length in the International System of Units; An English ruler provides incremental measurements in inches, with each inch further divided into smaller fractions. Read an English ruler using fractions of an inch.
A metric ruler is the standard instrument for measurement in the scientific laboratory. On a metric ruler, each individual line represents a millimeter (mm). The numbers on the ruler represent centimeters (cm). There are 10 millimeters for each centimeter.
Here are some rulers you can print out. Disposable paper. One foot ruler (for A4 paper) 1 ft long, 3 cm. Two-meter-stick (cm and inches) 200 cm long, 2.4 cm .
This website measures the size of your screen and creates the image of a ruler that is the actual size.. ruler cm inch. Your display was distinguished as 15.1'' .