Adjacent angles in a parallelogram are supplementary.
Yes.
No, they are equal. Adjacent angles are supplementary in a prallelogram.
yes. they add up to 180.
Yes, adjacent angles are supplementary; however, opposite angles are not.
Yes. This is true because opposite angles are congruent and adjacent angles are supplementary.
No. The adjacent angles are supplementary.
No, they are equal. Adjacent angles are supplementary in a prallelogram.
yes. they add up to 180.
No. Opposite angles are equal. Adjacent angles are supplementary.
It has two pairs of parallel sides.Its adjacent angles are supplementary.
Yes, adjacent angles are supplementary; however, opposite angles are not.
The adjacent Supplementary angles are the sum of 2 angles that make 180 degrees.
Yes. This is true because opposite angles are congruent and adjacent angles are supplementary.
First of all, you know the opposite sides of a parallelogram are equal because of the definition of a parallelogram. Therefore, two adjacent angles in the parallelogram are supplementary, because same-side interior angles in two parallels and a transversal are always supplementary. Therefore, opposite angles in a paralellogram are equal, because two angles both supplementary to a third angle are equal to each other.
In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).
No. The adjacent angles are supplementary.
In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).
No. In a parallelogram, adjacent angles are supplementary (they add up to 180°). A reflex angle is between 180° and 360°. So if one of the angles could be greater than 180°, then the adjacent angle would have to be negative, or else it is not a parallelogram. * * * * * All the EXTERNAL angles of a parallelogram are reflex angles!