Question

The circumference of a circle is 30.6 cm. Its radius is
cm.​

Answer 1

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