55 degree
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-235
A reference angle is the positive angle less than 360 which is coterminal with the given angle. For a negative angle add 360 repeatedly until you gat an answer less than 360. =370 + 360 = -10 -10 +360 = 350
we have to divide 900 by 360 we get 2.5 and then we have to multiply 2 by 360 we get 720 and now we subtract 900 from 720 we get 180 degrees and this the solution
195 degrees.
pi/2 is one possible answer.