A meter stick
a 30cm ruler
An ordinary ruler.
A normal metric ruler!
A metric ruler is divided into centimeters, with each centimeter further divided into 10 smaller units called millimeters. This allows for precise measurements in the metric system.
A ruler is usually divided by: inches, centimeters, and millimeters.
The units of length on a ruler are typically in inches and centimeters. Each inch is divided into smaller units, such as eighths or sixteenths, while centimeters are divided into smaller units called millimeters.
A full scale ruler is typically divided into inches or centimeters, with smaller increments for more precise measurements. Each inch is divided into smaller units such as quarters, eighths, or sixteenths. Similarly, centimeters are divided into smaller units like millimeters for accuracy in measuring.
The uncertainty of a ruler in centimeters refers to the smallest measurement that can be reliably determined using the ruler. This uncertainty is typically around 0.1 centimeters, meaning that measurements taken with the ruler may have a margin of error of up to 0.1 centimeters.
The customary ruler uses both inches and centimeters.
You use a ruler or similar object that is marked with centimeters. If your ruler only has inches, measure the inches, then multiply with 2.54 to get centimeters.
It will be on the Centimeters
30 centimeters