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Casio Scientific Calculator Fx-9750gii Convert Rad to Degrees

Reviewed by Calculator Editorial Team

The Casio FX-9750GII scientific calculator is a powerful tool for converting between radians and degrees. This guide explains how to perform this conversion accurately using the calculator's built-in functions.

How to Convert Radians to Degrees on FX-9750GII

The Casio FX-9750GII provides a direct conversion function between radians and degrees. Here's how to use it:

  1. Turn on your FX-9750GII calculator and press the MODE button to access the angle unit menu.
  2. Use the cursor keys to select RAD (radians) or DEG (degrees) as the input unit.
  3. Enter the value you want to convert by pressing the appropriate number keys.
  4. Press the SHIFT button followed by the RAD or DEG button to convert between units.
  5. The calculator will display the converted value in the selected unit.

Note: The FX-9750GII automatically remembers your preferred angle unit setting. Make sure to set it correctly before performing calculations.

Conversion Formula

The relationship between radians and degrees is defined by the following formula:

Degrees = Radians × (180/π)

Radians = Degrees × (π/180)

Where π (pi) is approximately 3.141592653589793.

The FX-9750GII uses this formula internally when you perform the conversion through its menu system.

Worked Example

Let's convert 2 radians to degrees using the FX-9750GII:

  1. Set the angle unit to RAD by pressing MODE and selecting RAD.
  2. Enter the value 2 by pressing the 2 key.
  3. Press SHIFT followed by DEG to convert to degrees.
  4. The calculator displays approximately 114.5916 degrees.

Using the formula:

114.5916° = 2 × (180/π)

This confirms the calculator's result is accurate.

FAQ

Can I convert degrees to radians on the FX-9750GII?
Yes, the process is similar. Set the angle unit to DEG, enter your value, then press SHIFT followed by RAD to convert to radians.
What happens if I enter an invalid angle value?
The calculator will display an error message. Make sure your angle values are within the valid range for the selected unit.
Is there a way to convert radians to degrees without using the menu?
Yes, you can use the formula directly by multiplying radians by 180/π. The calculator's π value is accessible via the π key.
Does the FX-9750GII store my angle unit preference?
Yes, the calculator remembers your last angle unit setting until you change it.