A circle with an area of 25pie has a sector with a central angle of 9/10 pie radians

11.25 pi

Step-by-step explanation:

  Pi is 180 degrees, a circle is 360 degrees, 9/10's of 180 is 162, and divide that by the full 360 which is .45. Then, multiply that by 25 and you have 11.25 pi is the area of that sector.

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )

i would say true? if the unit was informational and it "refreshed your understanding", then true.