Question

In the given figure, AB is a chord of a circle with centre O and AB is produced to C such
that BC = OB. Also, CO is joined and produced to meet the circle in
D. If ∠ACD = 25°, then find ∠AOD

Answer 1

Answer:

please make brain list answer if it is correct than only

Answer 2

Answer:

Given BC=OB

ANGLE OBC = ANGLE BCO

ANGLE ABO= 25°+25°=50° (EXTERIOR ANGLE PROPERTY)

AO= BO(RADIUS)

ANGLE ABO=ANGLE BAO

=50°

ANGLE ADO= SUM OF ANGLE OAC AND ANGLE ACO

=50°+25°=75°

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