Question

From a cyclic quadrilateral bod =100° then find the angles of bad and

Answer 1

Answer:

As ABCD is a cyclic quadrilateral

then sum of opposite angles ( i.e. BCD + BAD = 180 ) as BAD = 80

AS BAD is a triangle

ABD + BAD + ADB = 180

70 + 80 + ADB = 180

ADB = 180 - 150

ADB = 30