How do I get the angle between the red and blue vector❓

Help and Feedback Scripting Support
#1

So I want to rotate the blue line to the red line, how exactly do I get the angle between the two vectors?

angle
angle1600×1200 32.6 KB

#2

Do you have the lengths of these 2 lines (or better the position of their starts and ends)?

#3

Angle = math.acos(V1.Unit:Dot(V2.Unit))

#4

You could use the new Vector3:Angle function that Roblox implemented.