Dot Product For An Angle
Geometry
Level
2
Three points \(A, B,\) and \(C\) in three-dimensional Euclidean space have their respective coordinates \( (-6, 2, –4), (–1, 1, –2),\) and \((-2, 2, 1).\) What is the measure of \(\angle ABC?\)
by
Alec Mcdonald