plzzzz solve this question....fast..plzzz
Attachments:

h4hero2004p4r7sq:
is E the centre of the circle?
Answers
Answered by
3
angle ACD = angle ABD (angle formed by the same segment)
In ∆ECD,
angle(ECD+EDC+CED) = 180° ( sum of all interior angles of a triangle is 180°)
85° + angle CED = 180°
angle CED = 95°
angle CEB + angle CED = 180° ( linear pair axiom)
angle CEB = 180° - 95° = 85°
angle BAC = angle CDB ( angle formed by the same segment)
In ∆ABD,
angle BAC + angle ABD + angle ADB = 180° ( sum of all interior angles of a triangle is 180°)
angle ADB = 180°-(90°+50°) =40°
In ∆ECD,
angle(ECD+EDC+CED) = 180° ( sum of all interior angles of a triangle is 180°)
85° + angle CED = 180°
angle CED = 95°
angle CEB + angle CED = 180° ( linear pair axiom)
angle CEB = 180° - 95° = 85°
angle BAC = angle CDB ( angle formed by the same segment)
In ∆ABD,
angle BAC + angle ABD + angle ADB = 180° ( sum of all interior angles of a triangle is 180°)
angle ADB = 180°-(90°+50°) =40°
Similar questions