Question

In the below figure, ZABC = 69º. ZACB = 31°, find Z BDC.
D​

Answer 1

Answer:

Step-by-step explanation:

69 + 31 + angleABC =180

angleABC= 180-100

angleABC=80

since, angleABC and angleBDC lie on the same segment BC

Therefore, angleBDC =80

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Answer 2

Answer:

Angle BDC=80

Step-by-step explanation:

In Triangle ABC

Angle BAC=180-(69+31)=80

Angle BAC =Angle BDC

[Angle of the same segment are equal]