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Frequently Asked Questions
How do I convert degrees to radians?
To convert degrees to radians, multiply the number of degrees by pi/180 (approximately 0.01745). For example, 180 degrees equals pi radians (approximately 3.14159).
What is a gradian?
A gradian (also called a gon or grade) divides a right angle into 100 parts. A full circle has 400 gradians. One gradian equals 0.9 degrees.