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
.
Answer:
Volume is 48 yards cubed
surface area is 96 yards squared
22+(-3)
first one.
u take out the adding sign and convert it to minus so it’s 19.
Answer:
145 for me sorry if not correct