No, they are generally not supplementary.
The answer is supplementary! :-)
No, they are supplementary.
No. The adjacent angles are supplementary.
opposite angles are supplementary
No, they are generally not supplementary.
Yes.
A trapezoid.
Yes because that is one of the properties of a trapezoid
The answer is supplementary! :-)
Wouldn't think so, think of a trapezium shaped like a square with a triangle on one side... The angles at one end of the figure are both 90o, and the angles at the other end will be supplementary, but not opposite angles.
They are, yes.
Allied (or co-interior) angles are supplementary. Vertically opposite angles are always equal.
No, they are supplementary.
No. The adjacent angles are supplementary.
opposite angles are supplementary
'never'