Class 8 / IIT Foundation Plus Maths / Angles In Quadrants / Theta Equal to 90 Degrees and 45 degrees

ANGLES IN QUADRANTS

  ANGLES IN QUADRANTS   If \(\theta=90^0\) Let \(op = r = 1{U}\)  op will coincide with Y-axis      \(\therefore \,\,op = y = 1 = r\) x = 0