Q8. ABCD is a cyclic quadrilateral (see Fig. 3.7). Find the angles of the cyclic quadrilateral.
As we know that in a quadrilateral the sum of opposite angles is 180 degree.
So, From Here,
Multiplying (1) by 3 we get,
Subtracting, (2) from (3) we get,
Substituting this value in (1) we get,
Hence four angles of a quadrilateral are :