Question: how to find vector magnitude in 3d?
Answer: How to calculate the magnitude of a 3D vector? |V| = sqrt(x² + y² + c²) where x, y, z are the components of the vector V. Graphically the above formula can be proven by plotting a 3D vector on a x, y, z coordinate system and using the Pythagorean theorem and some geometry to calculate the magnitude of the vector.