Question

The diameter of a bicycle wheel is 63cm.What is the circumference

Answer 1

Answer:

The radius=d÷2=63÷2=31.5

circumference of circle =2πr

2×22÷7×31.5=198

Answer 2

Answer:

2pie r

2×22/7×63

2×22×9

44×9

396

hope it helps u my friend