The two straight edges of the shape correspond to the original circle's radius, 5.5 cm. We're told this sector has area 30.25 cm^2, which we will use to determine the measure of the central angle subtended by the arc (the remaining edge of the shape).
The complete circle has an area of 
, which corresponds to a "central angle" of 
. Then if 
is the central angle of this sector, we have
The complete circle has a circumference of 
. Then if 
is the length of the sector's arc, we get
So the sector has a total perimeter of
5.5 cm + 5.5 cm + 11 cm = 22 cm
It will be negative because he has 422 but purchased 484 which is more than he has . so he is a negativge nuber because owns money
Nty just putting an answer though you know?
The volume:
Pi x r^2 x h
V = pi x 12^2 x 7
V = 1008pi units^3
The answer would be a
hope it helps.
