The number of degrees in the first quadrant is 45 degrees.
Coordinates of a circle
The formula for calculating the angle in the first quadrant If the coordinates of point J are [tex](\frac{\sqrt{2}}{2}, \frac{\sqrt{2}}{2})[/tex]
[tex]tan \theta = \frac{y}{x}\\tan \theta =\frac{\frac{\sqrt{2}}{2} }{\frac{\sqrt{2}}{2} }\\tan \theta =1\\\theta = tan^{-1}1\\\theta = 45^0[/tex]
From the calculation above the number of degrees in the first quadrant is 45 degrees.
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