# What is the cosine of an angle of 60 degrees in an arbitrary triangle?

September 14, 2021 | education

| To find out the value, you need to look in the table of values.

Table values sin, cos, ctg.

sin 30 = 1/2 cos 30 = √3 / 2 tan 30 = √3 / 3 ctg 30 = √3 sin 450 = √2 / 2 cos 45 = √2 / 2 tan 45 = 1 ctg 45 = 1 sin 60 = √3 / 2 cos 60 = 1/2 tg 60 = √3 ctg 60 = √3 / 3

Answer: cos 60 ° = 1/2.