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Circles - Calculating Area and Circumference
Author:
Mr E. Bissoon
Topic:
Area
,
Circle
The Area of a Circle is calculated using this formula:
The Circumference of a Circle is calculated using this formula:
or
Important things to remember:
Circle
The
red
line represents the diameter. The diameter is the distance of the widest part of the circle, from any point of the edge of the circle to the opposite side. The
green
line represents the radius (the distance from the centre of the circle to the outer edge).
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