Question

which metric unit would you use to measure the length of a classroom?​

Answer 1

Answer:

Metre

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Answer 2

In metric system of measurement the metre is the basic unit of length, gram is the basic unit of mass and litre is the basic unit of capacity.

In units of measurement of length we use centimeter (cm) to measure. We can use this unit for measuring the length of a pencil, the width of a book etc. but this unit is too big to measure the thicken of a pencil. 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).