If each pair of opposite angles are equal in a quadrilateral. Prove that it is a parralelogram.
Prove that if in a quadrilateral each pair of opposite Angles are equal then it is a parallelogram.
If a pair of opposite sides of a cylic quadrilateral are equal, prove that its diagonals are equal. [3 MARKS]
Prove that if both pairs of opposite angles of a quadrilateral are equal, then it is a parallelogram. [3 MARKS]