How to find the diameter of an unknown measure for a circle?

3 Answers

The Dragon Profile
The Dragon answered
Try this if its circumference is given:
Since Circumference= pi x diameter, by re-equating you'll get
Diameter= Circumference /pi
Remember, diameter is twice the measure of its radius.
Sanjay sagar Profile
Sanjay sagar answered
Draw two non -parallel chords inside the circle and draw the perpendicular bisector of each. The intersection point will give you the centre . From this centre you can find the diameter

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