Final answer:
If only the angles of two vectors are known, we can find the angle of their resultant addition vector.
Step-by-step explanation:
True
If only the angles of two vectors are known, we can find the angle of their resultant addition vector. The angle of the resultant vector is equal to the sum of the angles of the two individual vectors.
For example, if vector A is at an angle of 30 degrees to the x-axis and vector B is at an angle of 45 degrees to the x-axis, the angle of their resultant vector would be 30 + 45 = 75 degrees.