## cutiecomittee123 one year ago which of these are correct pi/6 is a reference angle to 5pi/6 3pi/6 8pi/6 13pi/6 I know that 5pi/6 is one of them

1. anonymous

$\frac{ 13 \pi }{ 6 }$

2. anonymous

$\frac{ 13 \pi }{ 6 }=2\pi+\frac{ \pi }{ 6 }$

3. cutiecomittee123

why dont the others work

4. cutiecomittee123

and do any of the others work

5. anonymous

|dw:1443060047232:dw|

6. cutiecomittee123

okay so then the only two that can fit in are 5pi/6 and 13pi/6

7. cutiecomittee123

are you sure because i know that it can go into other quadrants as a reference angle as well

8. anonymous

|dw:1443060231126:dw|

9. anonymous

pi-5pi/6=pi/6

10. anonymous

yes you are correct.

11. anonymous

it can go in other quadrants also. so 5pi/6 and 13pi/6