12. Prove that the sum of opposite sides of quadrilateral circumscribed about a circle is always equal. i.e. if a quadrilateral ABCD is circumscribed about a circle the

12. Prove that the sum of opposite sides of quadrilateral circumscribe

1.	12. Prove that the sum of opposite sides of quadrilateral circumscribed about a circle is always equal. i.e. if a quadrilateral ABCD is circumscribed about a circle the
Answer» 12. Prove that the sum of opposite sides of quadrilateral circumscribed about a circle is always equal. i.e. if a quadrilateral ABCD is circumscribed about a circle the