To get the area of a square or rectangle, measure two sides in metres (A and B above) and multiply them together.
A x B = Area m2
in the above example, if A and B are both 10 metres...
10 x 10 = 100m2
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For a circle, measure the radius (3 metres above). You then multiply Pi x the radius squared
3.14 x Radius2 = Area m2
so for the above diagram...
3.14 x 3 x 3 = 28.27m2
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Fir a triangle, measure the base (5 metres above). You then halve that and multiply the result by the height (2.5 metres in our diagram)
Half base x Height = Area m2
so for the above diagram...
2.5 x 2.5 = 6.25m2
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