How much longer is the car than the motorbike?
How can we find?
The car is longer than motorbike.
To measure the exact length of object, we need the standard units of length
Meter is the standard unit of length. The symbol ‘m’ is used for meter.
The length of rope, wire ribbon, table, etc, are measured in meters.
How much longer is the lower pencil than the upper pencil.
Can we use meter scale to measure the length of a pencil?
No, let us learn how to measure the length of shorter object.
Centimeter is also the unit of length. The symbol ‘cm’ is used for centimeter.
The ruler is divided into 15 equal parts. the length of each part is 1 cm.
The length of pencil, note book, chocolate, etc are measured in centimeters.
The length of chocolate is 8 cm.
Key Fact: Centimeter are used to measure the lengths of shorter objects.