1. Reference angle of 60
Solution:
`60 ^circ` is in the first quadrant
The Reference angle of `60 ^circ`
`=60 ^circ`
2. Reference angle of 120
Solution:
`120 ^circ` is in the second quadrant
The Reference angle of `120 ^circ`
`=180 ^circ-120 ^circ`
`=60 ^circ`
3. Reference angle of 200
Solution:
`200 ^circ` is in the third quadrant
The Reference angle of `200 ^circ`
`=200 ^circ-180 ^circ`
`=20 ^circ`
4. Reference angle of 300
Solution:
`300 ^circ` is in the forth quadrant
The Reference angle of `300 ^circ`
`=360 ^circ-300 ^circ`
`=60 ^circ`
This material is intended as a summary. Use your textbook for detail explanation.
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