It equal 12 have a nice day
Three pieces are left. Hope this helps!
... Max sure is hungry.
The answer is 7,323 al you have to do is pay atention
Answer:

Step-by-step explanation:
We have,
Radius of the circle is 12 cm
Arc length, l = 21 cm
It is required to find the central angle of the circle. The formula for the length of an arc of a circle is :

is central angle

So, the angle at the centre of the circle is
.