Answer:
EBC= EBD + CBD = 90/2 + (180-40)/2 = 45 + 70 =115
115°
Step-by-step explanation:
Angle EBD = 90/2 = 45
AnglenDBC = (180 - 40)/2
= 140/2 = 70
Angle EBC = Angle EBD + AnglenDBC
= 45 + 70
= 115°
