How to find the angle between two lines in three-dimensional geometry?
To find the angle between two lines in three-dimensional space, we use the dot product formula. The formula is:
cos(θ) = (a · b) / (|a| |b|)
where a and b are the direction vectors of the two lines. This formula helps determine the angle between two lines by relating the vectors' orientation in space, and the result will give the angle between the lines.