The circumference of a circle is 30.6 cm. Its radius is
cm.
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Answer:
circumference of the circle=30.6
formula of circumference=2πr
therefore, 30.6 =2πr
30.6= 2×22/7×r
30.6÷2=22/7×r
15.3= 22/7 ×r
15.3×7= 22×r
107.1÷22=r
4.86=r=answer
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