Question

Angle ADC=70, and Angle BDC-20. Find the

measure of angle ADB.


Please help me with geometry

Answer 1

Answer: 50 degrees

Explanation:

We know that angle ADC is equal to 70 degrees. Angle ADC has parts ADB and BDC, so we know that angle ADC= Angle ADB + Angle BDC. (This is from angle addition postulate). We know that angle ADC=70 degrees. angle BDC=20 degrees. So angle ADB = 70-20=50 degrees