if 360 degrees is equal to 2 Pi (3.14...) so 180 degrees is equal to 1 PI or just Pi
A radian is 180/pi degrees, or about 57 degrees
pi = 3.14 pi rad = pi * 1 randian 360 degrees = 2pi rads 180 degrees = pi rads rads = (degree * pi) / 180 degrees = (rad * pi) / 180 If pi rad = 180 degrees, the 1 rad must = 180/pi If pi rad = 180 degrees, then 1 degree must = pi rads / 180 Keep following through.
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.
pi = 180 degrees 240 degrees = 240/180 time pi = 4 pi/3
180/pi, just over 57 degrees.
Pi is the ratio of a circle's circumference to its diameter, about 3.14159. Pi radians is equal to 180 degrees.
Multiply degrees by (pi/180) to get radians. Multiply radians by (180/pi) to get degrees.
degrees = pi/180 180 degrees = pi .33pi = .33 times 180 = 60 degrees
On a circle, the "half-way" mark, is 180 degrees. That, in radians, is pi. The entire circle is 360 degrees or 2 pi.