Question

Find the circumference of circle. Take pie 22/7 of diameter =9. 8m

Answer 1

diameter =9.8
radius=9.8/2=4.9
circumference =2πr
=2*22/7*4.9
=30.8cm

HOPE THIS HELPS YOU

Answer 2

$radius = \frac{diameter}{2} \\ = 4.9 \\ circumference = 2\pi \: r \\ 2 \times \frac{22}{7} \times \frac{49}{10} \\ = 30.8m$
hope you get the solution