Angle ADB = Angle CBD + Angle ACB = 40 degrees
CE is the bisector of AB, so, Angle ADE = Angle BDE as well
So, Angle ADE = 1/2 Angle ADB =20 degrees
Angle ADB = Angle CBD + Angle ACB = 40 degrees
CE is the bisector of AB, so, Angle ADE = Angle BDE as well
So, Angle ADE = 1/2 Angle ADB =20 degrees