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What is the radius and circumference of a circle if the diameter is 10•5cm what is the radius and circumference if pie is ²²/7

Answer» R of the circle = 10.5 CM (given)Radius = Diameter/2 = 10.5/2 = 5.25 cmCircumference of the circle = 2πr    ( π = 3.14)CIRCUMFERENCE = 2 * 3.14 * 5.25 = 32.97 cmCircumference of circle when π is 22/7Circumference = 2 * 22/7 * 5.25 = 32.97 cm


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