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## Mrfootballman97 Group Title 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 one year ago one year ago

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1. Emah

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

2. Emah

|dw:1365192545644:dw|

3. Mrfootballman97

That is the final answer?

4. Mrfootballman97

No, right?

5. Mrfootballman97

Like what are the steps?

6. Emah

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.

7. Mrfootballman97

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

8. Mrfootballman97

1440pi over 360?

9. surjit

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

10. Mrfootballman97

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

11. Mrfootballman97

@Emah Could you help?

12. surjit

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

13. Mrfootballman97

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

14. Emah

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

15. surjit

A=(πr^2)/2πr*10π=5πr=5π*12=60π

16. Mrfootballman97

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