Question

The length of the classroom can be measured using
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Answer 1

Answer:

So we use another unit called millimeter (mm). Also, centimeter and millimeters are very small units to measure the length of the classroom. We use another unit called meters. Even meter is too small unit when we state the distances between two cities, there we need kilometers (km)

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Answer 2

Answer:

The tapes and meter-rod of meter-scale are used to measure the length and breadth of a room, table, blackboard, etc. and also the length of a piece of string, a piece of cloth, etc. The small scales of measure 30 cm or 15 cm are used to measure the lengths of line-segments, chalk-pieces, the length of a pencil, etc.

Step-by-step explanation:

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