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Answers
Answer:
Step-by-step explanation:
AD || BC , DB is a transversal.
∠ADB = ∠DBC = 65° (alternate angles)
In Δ BDC sum angles will be 180°
∠BDC + 65° + 50° = 180°
∠BDC = 65°
DC || AB , DB is a transversal.
∠BDC = ∠DBA = 65° (alternate angles)
In Δ ABD sum angles will be 180°
∠A + 65° + 65° = 180°
∠A = 50°
Answer:
Angle a= 50 degree because of interior opposite angle.
Then, angle b= 65 degree because of in triangle dab sum of all angles of triangle is 180 degree since two angles are given them if we have to find answer then we do a calculation in which unknown agle+ sum of two given angle = 180 degree then unknown angle = 180 degree minus sum of two given angle.
in triangle DBC angle adb = angle DBC because of alternate angle. angle dba = angle BDC=65 degree.
Answer:-angle DBC=65 degree.
angle BDC=65 degree.
angle DBA=65 degree.
angle A= 50 degree.