How do you convert degrees into radians?

Answer 1

There is no word such as raduis. The nearest word that makes the question sensible is radians. To convert degrees to radians you multiply by pi/180. That is,

d degrees = d*(pi/180) radians.

Answer 2

radians = (pi/180)*degrees

eg 180 degrees = (pi/180)*180 radians

= pi

Answer 3

r radians = r*360/tau or r*180/pi degrees.

Answer 4

multiply by 57.2958