Yes.
If they do , the angles are supplementary !
Yes.
supplementary
A linear pair are always supplementary, 180 degrees not 90.
No, angles that form a linear pair are supplementary.
Yes.
Not necessarily. A linear pair of angles must be supplementary but supplementary angles need not form a linear pair. For example, the opposite angles of a cyclic quadrilateral are supplementary but they are (by definition) not next to one another.
Always :P
All supplementary angles do not form a linear pair. The opposite angles of any quadrilateral inscribed in a circle (a cyclic quadrilateral) are supplementary but they are not a linear pair. However, all linear pair are supplementary.
If they do , the angles are supplementary !
Yes.
supplementary
yes
A linear pair are always supplementary, 180 degrees not 90.
Yes they are
supplementary --- they add to 180