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MatematikaRia.com

# Metric Area

These are the most common measurements of area (from smallest to largest):

 Square Millimeter Square Centimeter Square Meter Hectare Square Kilometer

### Square Meter

The square meter is the basic unit of area of the Metric System

Area is length by length, so a square that is 1 meter on each side is 1 square meter.

You could have othe shapes (such as a rectangle that is ½ a meter by 2 meters) that also make 1 square meter.

The Unit is meters × meters, which is written m2 (square meters).

Example: How big is this rectangle?

It is 2 meters by 3 meters, so it is 2 m × 3 m = 6 m2

### Square Millimeter

A square millimeter is millimeters × millimeters, which is written mm2.

A millimeter is one-thousandth of a meter (1/1000 meter), so a square millimeter is also:

 1 × 1 = 1 of a square meter 1,000 1,000 1,000,000

In other words a square millimeter is one-millionth of a square meter.

So, a square meter has 1,000,000 square millimeters.

### Square Centimeter

A square centimeter is centimeter × centimeter, which is written cm2.

A centimeter is one-hundredth of a meter (1/100 meter), so a square centimeter is also:

 1 × 1 = 1 of a square meter 100 100 10,000

In other words a square centimeter is one-ten-thousandth of a square meter.

So a square meter has 10,000 square centimeters.

### Hectare

A hectare (ha) is an area equal to a square that is 100 meters on each side.

So a hectare has 100 m × 100 m = 10,000 m2 (square meters).

Hectares are commonly used to measure land.

### Square Kilometer

A square kilometer is kilometer × kilometer, which is written km2.

A kilometer is a thousand meters, so a square kilometer is also:

1,000 m × 1,000 m = 1,000,000 m2 (square meters).

In other words a square kilometer is one-million square meters.

Square kilometers are commonly used to measure large areas of land.