ABCD एक चतुर्भुज है जिसमें AB=AD और BD=CD और DBC=2 ABD है। सिद्ध कीजिए ABCD एक चक्रीय चतुर्भुज है।
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ABCD एक चक्रीय चतुर्भुज है। जिसमें AB=AD और BD=CD और ∠DBC=2∠ABD है
Step-by-step explanation:
AB = AB
मान लीजिये ∠ABD = α
=> ∠DBC = 2α
AB = AB
=> ∠ADB = ∠ABD = α
=> ∠BAD = 180° - 2α
BD = CD
=> ∠DCB = ∠DBC
=> ∠DCB = 2α
∠BAD + ∠DCB = 180° - 2α + 2α
=> ∠A + ∠C = 180°
=> ABCD एक चक्रीय चतुर्भुज है।
इति सिद्धम
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