Medal given to person who answers! Find the area of a sector of a circle with radius 12 and arc length 10(pi). Show work

Question

Medal given to person who answers! Find the area of a sector of a circle with radius 12 and arc length 10(pi).  Show work

anonymous · Answer

|dw:1365192409384:dw|Ok for this one is is easiest to draw it out first.

anonymous · Answer

|dw:1365192545644:dw|

anonymous · Answer

That is the final answer?

anonymous · Answer

No, right?

anonymous · Answer

Like what are the steps?

anonymous · Answer

No that isn't the answer.. You have to plug in the information they have given you. 
The r in this formula represents 12, the radius. While m represents the measure of the length they gave you, 10pi.

anonymous · Answer

So:$$144 \left( 10\pi \right) \over 360$$

anonymous · Answer

1440pi over 360?

anonymous · Answer

a=pir^2*10pi/2pir=5pir

anonymous · Answer

Could someone just write out the entire answer so that i can understand the steps easier? Thanks

anonymous · Answer

@Emah  Could you help?

anonymous · Answer

A=pi r^2/2 pi r*10 pi=5 pi r=5 pi 12=60 pi

anonymous · Answer

Sorry but im not following..Maybe make it easier to read?

anonymous · Answer

I'm sorry, I know how to do this, but I can't figure out the 10pi being the measure.. Usually its a degree..

anonymous · Answer

A=(πr^2)/2πr*10π=5πr=5π*12=60π

anonymous · Answer

does the / mean a fraction like (pi)(r)^2 over something else?