Question

pls solve this with explanation​

Answer 1

Answer:

20°

Step-by-step explanation:

Angle ADB = 180° - (Angle ABD + Angle BAD(given))

Angle ADB = 180° - (90° + 50°)

Angle ADB = 40°

Now, it is given that Angle ADC = 120°

And now we got Angle ADB = 40°

So, Angle BDC = 120° - 40° = 80°

Now, as we can see that the ∆BDC is an Isosceles Triangle,

Angle DBC = Angle BDC = 80°

Now, Angle BCD = 180° - (Angle DBC + Angle BDC)

Angle BCD = 180° - (80° + 80°)

Angle BCD = 20°

I hope This is clear Now...

Have a Great Day Ahead....