Question

Solve it with calculation.Plz its urgent.

Answer 1

Construction,
Join BC

Now,
BC is a chord.
A chord subtends angle at the centre which is double the angle subtended at any other point on the circle.
So,
an. BCO = 2an.BDC
=>(180°-110°) = 2an.BDC [Linear pair]
=>an. BDC = 1/2 × 70°
=>an. BDC = 35°.



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