Question

If angle abc is equal to 69 degree and acb is equal to 31 degree then find bdc

Answer 1

Answer:

100°

Step-by-step explanation:

According to the theorem of remote interior angle,(L=angle)

Labc+Lacb=Lbdc

69°+31°=Lbdc

Thus, Lbdc=100°

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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.

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