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A rhombus has two pair of equal angles. Adjacent angles are supplementary.
Adjacent angles in a parallelogram are supplementary.
Yes, adjacent angles are supplementary; however, opposite angles are not.
If the question refers to the total angle on a straight line then the angles are adjacent and supplementary - the angles total 180° .
they are called supplementary angles. a straight line has 180 degrees each side and two adjacent angles forming 180 degrees are called supplementary angles.