Question

If <ABC=69°, <ACB=31° Find <BDC.​

Answer 1

Answer:

AB EQUALS TO CD. SO ANGLE A EQUALS TO ANGLE D.

Answer 2

Answer:

Angle sum property of a triangle = 180°

In triangle (ABC) = <ABC + <ACB + <BAC = 180°

69° + 31° + <BAC = 180°

100° + <BAC = 180°

<BAC = 180° – 100°

<BAC = 80°

<BAC = <BDC [angles made on same segment are equal]

Therefore, <BDC = 80°

Hope u got it...