## mvrc1996 2 years ago Find the area of ΔAOB

1. mvrc1996
2. mvrc1996

@mathslover

3. saifoo.khan

$\Large \text{area of sector} = \frac{\theta}{360} * \pi r^2$

4. mathslover

^

5. mvrc1996

60/360 ?

6. mvrc1996

right?

7. mathslover

Forgetting something there mvrc... pi r^2

8. saifoo.khan

^

9. mvrc1996

I was just saying for the first part and then its $\frac{ 60 }{ 360} \pi 6^2$

10. mvrc1996

yeah?

11. mvrc1996

but idk exactly how to solve it when I get to 60/360 pi36

12. saifoo.khan

Use a calc?

13. mvrc1996

ik but then do I put 36 /1 and then multiply and divide?

14. saifoo.khan

Which calc do you have?

15. saifoo.khan

(60/360) * pi * (6)^2

16. mvrc1996

3√3un2 4.5√3un2 9√3un2 theses are the choices it gives me. and I just have a regular one on the pc

17. mvrc1996

hello?

18. mvrc1996

19. mvrc1996

or @mathslover

20. mathslover

@mvrc1996 what is 'un' there in the options?

21. mvrc1996

maybe units

22. mvrc1996

idk

23. mathslover

The answer should be : $$6\pi$$ but that is not given in the options. hmn

24. mvrc1996

maybe its just 1/6 because its just asking for that section

25. mathslover

Oh yeah we did a mistake @saifoo.khan

26. mvrc1996

27. mathslover

We found area of sector NOT the area of triangle. Area of triangle = Area of sector - Area of segmennt

28. mvrc1996

how do I find the area of the segment?

29. mathslover

I have to go mvrc .. it is 11:50 PM here.. sorry . THis will help u for sure : http://www.regentsprep.org/regents/math/geometry/GP14/CircleSectors.htm @hartnn @AravindG and @amistre64 - any of these can help u mvrc. Good luck

30. mvrc1996

thank you