Diagonals in the quadrilateral ABCD the line segments AC and BD are called its diagonals.

In the quadrilateral ABCD, the diagonals AC and BD are equal and perpendicular to each other. What type of a quadrilateral is ABCD?

In the quadrilateral ABCD, the diagonals AC and BD are equal and perpendicular to each other. What type of a quadrilateral is ABCD?

In a cyclic quadrilateral ABCD the diagonal AC bisects the angle BCD. Prove that the diagonal BD is parallel to the tangent to the circle at point A.

If the diagonals AC,BD of a quadrilateral ABCD, intersect at O, and separate the quadrilateral into four triangles of equal area, show that quadrilateral ABCD is a parallelogram.

In a quadrilateral ABCD, with unequal sides if the diagonals AC and BD intersect at right angles, then

If ABCD is a quadrilateral whose diagonals AC and BD intersect at O, then

In Figure,ABCD is a cyclic quadrilateral in which AC and BD are its diagonals.If /_DBC=55^(@) and /_BAC=45^(@), find /_BCD

ABCD is a cyclic quadrilateral in which AC and BD are its diagonals.If angleDBC = 70^@ and angle BAC = 30^@ find angleBCD