Question

in figure angle abc is equal to 69 degree and Angle ACB is equal to 31 degree find angle bdc

Answer 1

angle bdc=80° because the sum of all angles of triangle is 180°

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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