Answer:
Reference angle Angle greater than 90°
30° 330°
60° 240°
90° 270°
45° 135°
Step-by-step explanation:
To find : Match the angles that are greater than 90° with their reference angles ?
Solution :
The reference angle is always the smallest angle that you can make from the terminal side of an angle with the x-axis.
For angles in first quadrant, the reference angle is itself.
In second quadrant, the equation would be 180 - x where x is the measure of the angle.
In third quadrant, x - 180.
In the fourth quadrant, the reference angle is 360 - x.
From the second set of angles in the given, the reference angles are.
1) For 135°
Reference angle = 180 - 135 = 45°
2) For 240°
Reference angle = 240-180 = 60°
3) For 270°
Reference angle = 90° (lies in the y - axis)
4) For 330°
Reference angle = 360-330 = 30°
Reference angle Angle greater than 90°
30° 330°
60° 240°
90° 270°
45° 135°
