Final answer:
The statement about finding the angle of a resultant vector from only the angles of two vectors is false. However, it is true that a vector can form a right-angle triangle with its x and y components, as vectors can be decomposed into these orthogonal parts.
Step-by-step explanation:
The statement "True or False-If only the angles of two vectors are known, we can find the angle of their resultant addition vector." is false. Knowing only the angles of two vectors relative to a reference direction does not provide enough information to determine the angle of their resultant vector. To find the angle of the resultant vector, one would also need the magnitudes of the original vectors.
In contrast, the statement "True or False-A vector can form the shape of a right angle triangle with its x and y components." is true. Any vector in a two-dimensional plane can be broken down into x (horizontal) and y (vertical) components. This decomposition creates a right triangle, with the original vector as the hypotenuse and its x and y components as the two legs forming the right angle.