Question

If angle abc =69 and angle =31 find angle bdc

Answer 1

69+31+bdc=180(angle sum prop of triangle)
Therefore,
100+bdc=180
Bdc=80

Answer 2

Hello mate =_=

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Solution:

∠ABC+∠ACB+∠BAC=180°

⇒69°+31°+∠BAC=180°

⇒∠BAC=180°−69°−31°=80°       ........(1)

∠BAC=∠BDC  (Angles in the same segment are equal)      .......(2)

From (1) and (2), we can say that

∠BDC=80°

hope, this will help you.

Thank you______❤

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