Metric Units - Measurement

Perimeter and Area

We measure length in meters, centimeters, millimeters and kilometers

1 centimeter = 10 millimeters
1 meter = 100 centimeters
1 meter = 1000 millimeters
1 kilometer = 1000 meters

m = meter
cm = centimeter
mm = millimeter
km = kilometer

Hard at work

The perimeter around the outside is 4m.
P= 1m+1m+1m+1m
P=4m

The area of this shape is 1m (squared)
We know that to work out the area the formula is BASE x HEIGHT.
A= 1m x 1m
A=1 m (squared)

Perimeter and Area of my desktop

I am measuring the perimeter of my desktop. I found out that it was 61cm by 47cm.
P= 61cm+47cm+61cm+47cm
P= 216cm

I also worked out the area of my desktop.
A= 61cm x 47cm
A=2867cm (squared)

By Shealeigh

Measuring the perimeter of the tennis court.

Here we are measuring the perimeter of the tennis court. We found out that it was 12m by 23m (rounded to nearest whole number).
P= 12m + 23m +12m +23m
P= 60m
So we found out that if you run around the perimeter of a tennis court, you run 60m.