1 Chalkboard

Figure 1: Computing lengths and angles

Figure 2: Resolution of computing an angle

Figure 3: Meaning of sign of a dot product

Figure 4: Detect orthogonality

Figure 5: Plane throught \(O\), perpendicular to \(\vec{A}\)

Figure 1: Computing lengths and angles

Figure 2: Resolution of computing an angle

Figure 3: Meaning of sign of a dot product

Figure 4: Detect orthogonality

Figure 5: Plane throught \(O\), perpendicular to \(\vec{A}\)