[" Prove that the quadrilateral formed by angle bisectors of a cyclite "],[" quadrilateral is also cyclic."]

The quadrilateral formed by angle bisectors of a cyclic quadrilateral is also cyclic.

The quadrilateral formed by angle bisectors of a cyclic quadrilateral is also cyclic.

The quadrilateral formed by angle bisectors of a cyclic quadrilateral is also cyclic.

The quadrilateral formed by angle bisectors of a cyclic quadrilateral is also cyclic.

Prove that the quadrilateral formed (if possible by the internal angle bisectors of any quadrilateral is cyclic

Answer any one question : Prove that the quadrilateral foemed by the internal bisectors of the four angles of a quadrilateral is cyclic.

Prove that the quadrilateral formed by the bisectors of the angles of a parallelogram is a rectangle.

Prove that the quadrilateral formed by the bisectors of the angles of a parallelogram is a rectangle.