Precalculus/Trig 3
posted by Greg on .
The degree measure of an angle theta is 40 degrees. What is the radian Measure of theta? at what point P does the terminal ray intersect the unit circle (what is the ordered paid P(____, ___)?

180° = π radians , (memorize this relationship)
so 1° = π/180 radians
then 40° = 40(π/180) = ...