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Filename: controllers/calculator.php

Line Number: 37

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For a given angle, the reference angle is calculated by looking at the quadrant it is lying in and this angle lies in the second

quadrant

For the second quadrant the reference angle is equal to 180-x.

Reference angle = 180-170 degrees

180-170 = 10 degrees

Reference angle = 10 degrees

For a given angle, the reference angle is calculated by looking at the quadrant it is lying in and this angle lies in the third

quadrant

For the second quadrant the reference angle is equal to x-180.

Reference angle = 210-180 degrees

210-180 = 30 degrees

Reference angle = 30 degrees