The bisectors of angles of a parallelogram from a :

Prove that the bisectors of the angles of a linear pair are at right angles.

Find the measure of all the angles of a parallelogram, if one angle is 24^@ less than twice of the smallest angle.

The sum of two opposite angles of a parallelogram is 130 ^ @ .Find the measure of each of its angles.

Show that the bisectors of the base angles of a triangle can never enclose a right angle.

State True or false: Opposite angles of a parallelogram are equal

True/false Consecutive angls of a parallelogram are complementary.

Two adjacent angles fo a parallelogram are as 2 : 3 .Find the measure of eac of its angles.

The angle betweeen two altitudes of a parallelogram through the vertex of an obtuse angle of parallelogram is 60^@ . Find the angles of the parallelogram.

The angle bisector of any angle of a triangle and perpendicular bisector of the opposite side if intersect, they will intersect on the circumcircle of the triangle.