Question

1. vocabulary one meaning of the word rigid is

ot bendable,\ and another is \unable to be changed.\ how do those meanings correspond to the definition of rigid motion?

Explanation:

In rigid motion, the shape and size of an object do not change (corresponding to "unable to be changed"). Also, the object moves as a whole without parts bending relative to each other (corresponding to "not bendable").

Answer:

In rigid motion, the object's shape - size remains constant (matches "unable to be changed") and there is no internal bending (matches "not bendable").