How do you turn -15 degree into radians?

1 Answer
Oct 3, 2015

Use the fact that #180^@ = pi " radians"#
to get #-15^@ = -pi/12# radians

Explanation:

Since
#color(white)("XXX")180^@ = pi# radians

#color(white)("XXX")1^@ = pi/180# radians

and
#color(white)("XXX")-15^@= (-15)*pi/180 =- 1/12pi = -pi/12# radians