Unit circle

360/0

2 pie.(1,0)

30

Pie over 6 (rad 3/2,rad 2/2)

45

Pie over 4(rad 2/2, rad 2,2)

60

Pie over 3 (1/2, rad 3/2)

90

Pie over 2(0,1)

120

2pie over 3(-1/2, rad 3/2)

135

3pie over 4 (-rad3/2,1/2)

150

5pie over 6(-rad3/2,1/2)

180

Pie(-1,0)

210

7pie over 6(-rad3/2,1/2))

225

5pie over 4(-rad2/2,-rad2/2)

240

4pie over 3(-1/2,-rad3/2)

270

3pie over 2(0,-1)

300

5pie over 3(1/2,-rad3/2)

315

7pie over 4(rad2/2, -rad2/2)

330

11pie over 6(rad3/2,-rad2/2)