The formula for getting the circumference of a circle is where 'r' is the radius. Just plug in the value for the radius.
We will also use 3.14 for PI.
C = 56.52
Hope this helps!
Step-by-step explanation:
circumference of circle (c) = 2πr
= 2. 22/7 . 9cm
= 396cm/7
= 56.57cm
Answer: 25
Step-by-step explanation: -5 x 25 + 13 = -112