anonymous one year ago Find the area of the segment of circle C shown above.(below) http://media.education2020.com/evresources/2092518_e27bdadc-5042-4dc8-a271-bd47449d4779.png

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1. anonymous

will give medal!

2. anonymous

A. a segment=353.66 u^2 B. a segment=434.88 u^2 C. a segment=458.88 u^2 D. a segment=707.32 u^2

3. anonymous

@DanJS @dan815 @Nnesha

4. anonymous

5. anonymous

@Luigi0210

6. anonymous

@xapproachesinfinity @Haseeb96

7. anonymous

@freckles @peachpi @dan815 @DanJS

8. anonymous

@Haseeb96 @homeSchooler000 @dan815 @DanJS @peachpi @xapproachesinfinity

9. anonymous

@Nnesha

10. DanJS

you can do the area of that entire 120 degree region and then take away the area of that 120 degree triangle probably

11. anonymous

12. DanJS

Are you still working on this, or no, sorry just got back here

13. DanJS

The area of a circle is pi*radius^2, the area of the pie slice angle 120 is $\pi*24^2*\frac{ 120 }{ 360 } = 192\pi \approx 603.19$ The triangle TCS has area $144\sqrt{3} \approx 249.42$

14. DanJS

subtracting the two, the shaded area is 603.19-249.24 = 353.77

15. anonymous

$Area: A=\left(\begin{matrix}1 \\ 2\end{matrix}\right)r ^{2}(\alpha-\sin \alpha)\left[ 1 \right]$

16. anonymous

thak you.

17. anonymous

sorry i had to leave for a few minutes. duty calls. :)

18. anonymous

i have one more question

19. anonymous

?

20. anonymous

find S which is the length of arc WV on circle C http://media.education2020.com/evresources/2092520_c,jpg.jpg

21. anonymous

is 0=7/9pi the degrees?

22. anonymous

A. s=7/2 pi B. s=7pi C. s=14pi D. s=28pi

23. anonymous

is not 0 its theta

24. anonymous

i think the formula is S= THETA/180 *PI*RADIUS

25. DanJS

arc length = radius * angle $s=r*\theta$

26. anonymous

so would it be 18*7/9*pi

27. DanJS

yep

28. anonymous

oh so it would be 14pi

29. anonymous

lol sorry this shouldnt have been a quiestion to ask. whoops. I can be so areless sometimes. But thank you to all of you that helped. I really appriciate it!:)

30. DanJS

welcome