This allows the user to measure the angle between two vectors that are defined by three points.

Figure 1 Angle icon in the Measure group of the Home tab

Figure 2 Definition of Angle

Figure 3 Angle dialog box
•First Point: Inputs a first point to measure the angle.
•Second Point: Inputs a second point to measure the angle.
•Last Point: Inputs a third point to measure the angle.
•Result
•Angle (degree): Shows the angle calculated as the degree unit.
•Angle (radian): Shows the angle calculated as the radian unit.
Step to Calculate an Angle
1. Specify First Point, Second Point, and Last Point
2. Click Calculate.