In a parallelogram, two adjacent angles are supplementary.

Assertion: The adjacent angles in a parallelogram are supplementary. Reason: In a parallelogram the adjacent angles are always equal.

If ABCD is a parallelogram with two adjacent angles angle A = angle B then the parallelogram is a

Prove that any two adjacent angles of a parallelogram are supplementary .

If an angle of a parallelogram is two-thirds of its adjacent angle, the smallest angle of the parallelogram is

In a parallelogram the sum of any two adjacent angles is 180^(@) .

Fill in the blanks: (i) If two angles are complementary, then the sum of their measures is _______. (ii) If two angles are supplementary, then the sum of their measures is ______. (iii) Two angles forming a linear pair are _______________. (iv) If two adjacent angles are supplementary, they form a ___________. (v) If two lines intersect at a point, then the vertically opposite angles are always _____________. (vi) If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are __________.

One of the angle of a parallelogram is 4/(5) of its adjacent angle. Find the measure of both angles.