Geometry Practice Test 1

∠ABC + ∠BCD = 180 [Sum of interior angles between parallel lines = 180°]
∠BCD = 180 - 130
∠BCD = 50°
∠BCD = ∠BCA + ∠ACE + ∠ECD
50° = 25° + 2∠ACE [∵ EC bisect ∠ACD]
2∠ACE = 25°
∠ACE = 12.5°