if diameter of circle is 7 cm its circumference is (x=22/7)
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Diameter =7 cm
Radius =7/2cm
Circumference =22/7×7/2×7/2
=11×7/2
=77/2
=38.5cm
Radius =7/2cm
Circumference =22/7×7/2×7/2
=11×7/2
=77/2
=38.5cm
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