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Math .A Tube.com
About this video
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>radius of a circle< you are here
Video coming soon
If you know the diameter
radius = _____
D
2
D is the diameter of the circle
If you know the circumference
radius = _____
π is Pi, approximately 3.142
C
2π
C is the circumference of the circle
If you know the area
A is the area of the circle
π is Pi, approximately 3.142
Geometry
radius of a circle:
A line from the center of a circle to a point on the circle.
