1)
40° = 40π/180 = 2π/9
120°= 120π/180 = 2π/3
150°= 150π/180= 5π/6
75°= 75π/180 = 5π/12
32°= 32π/180 = 8π/45
140°= 140π/180 = 7π/9
2)
π/6 = 180°/6 = 30°
π/9= 180°/9 = 20°
3/4 π= 3/4 *180° = 135°
2= (2* 180/ π )°=360/ 3,14 ≈ 115°
3= (3* 180/ π )°= 540/3,14 ≈172°
0,36 = (0,36 * 180/π )°= 64,8/ 3,14≈21°