Question

what is the answer to this​

Answer 1

Step-by-step explanation:

please mark me as brainlist

Answer 2

AD = BD, so Angle ABD = Angle BAD

= 50°. So, Angle ABD + Angle BAD + Angle ADB = 180°

= 100° + Angle ADB = 180°

= Angle ADB = 180°-100°

= 80°.

Now, Angle ADB + Angle ADC = 180°

= Angle ADC = 180° - Angle ADB

= Angle ADC = 180°-80°

=100°

In Triangle ADC,

ADC + ACD + DAC = 180°

100° + 2ACD = 180°

2ACD = 180°-100°

ACD = 80°/2

= 40° (Ans)