Reference Angle Calculator Table
Here’s a handy table to help you find reference angles quickly:
Quadrant |
Angle Range |
Reference Angle |
---|---|---|
1st |
0° to 90° |
Same as given angle |
2nd |
90° to 180° |
180° – given angle |
3rd |
180° to 270° |
given angle – 180° |
4th |
270° to 360° |
360° – given angle |
For example, if your angle is 150° and you need to find the reference angle:
- Since 150° falls in the 2nd quadrant, you use the formula: 180° – 150° = 30°.
- So, the reference angle for 150° is 30°.
Reference Angle Calculator (Free Online Calculator)
Reference Angle Calculator: A Reference Angle Calculator is a useful tool that changes any angle you give it into its acute version (an angle less than 90 degrees). The reference angle is the positive acute angle between the terminal side of an angle in the standard position and the x-axis. Just type in any positive angle, and this w3wiki free online calculator will quickly figure out the reference angle for you. If you’re studying or working with angles, especially in mathematics or geometry, this tool can be incredibly helpful.
Contact Us