Degrees and radians are two ways to measure angles.
✓ TRUE FACT
A full rotation is 360° or 2π radians, so 180° = π and 90° = π/2. Radians are natural in calculus because derivatives of trig functions behave neatly only in radians.
🤯 "Degrees and radians are two ways to measure angles. — two systems, one confused student."