In figure angle abc =69° angle acb=31° find angle bdc.
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Answer:In △ABC
∠BAC+∠ABC+∠ACB=180
o
(Angle sum property)
∠BAC+69
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+31
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=180
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∠BAC=180
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−100
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=80
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For segment BADCB,
VBDC and ∠BAC are angles in the same segment. So, they must be equal
∴ ∠BDC=∠BAC (Angles in the same segment are equal)
∠BDC=80
o
Step-by-step explanation:
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