Question

find the radius of a circle whose circumference is 39.6 CM​

Answer 1

Answer:

9.7

Step-by-step explanation:

Circumference =2×22/7×r

39.6=2×22/7×r

39.6×1/2×7/22=r

39.6/2×7/22=r

2.8/2×7

1.4×7

=9.8

Answer 2

Answer:

Circumference of a circle=2πr=39.6cm

⇒2× 22/7 r =39.6

⇒r=39.6×7. / 2x22

=6.3‬cm

Step-by-step explanation:

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