In a parallelogram, opposite angles are:

If in a parallelogram its diagonals bisect each other and are equal then it is a,

Angles of a quadrilateral are in the ratio 3 : 4 : 4 : 7. Find all the angles of the quadrilateral.

One angle of a quadrilateral is of 108º and the remaining three angles are equal. Find each of the three equal angles.

If angles A, B, C and D of the quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4, then ABCD is a

Three angles of a quadrilateral are 75º, 90º and 75º. The fourth angle is

The diagonals of a parallelogram:

ABCD is a parallelogram. If its diagonals are equal, then find the value of ∠ABC.

ABCD is a rhombus such that ∠ACB = 40º. Then ∠ADB is

The diagonals AC and BD of a parallelogram ABCD intersect each other at the point O. If ∠DAC = 32º and ∠AOB = 70º, then ∠DBC is equal to

A diagonal of a rectangle is inclined to one side of the rectangle at 25º. The acute angle between the diagonals is

The angle between two altitudes of a parallelogram through the vertex of an obtuse angle of the parallelogram is 60º. Find the angles of the parallelogram.

The consecutive angles of a parallelogram are