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Only you have to answer the question 1 from the diagram

Only you have to answer the question 1 from the diagram-example-1
User JonWillis
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ADC = 40 + 30 = 70 degrees

DBC is given at 45 deg

AEB = 100 degrees, vertical angle from intersecting lines

BCD = 50 + 50 = 100 degrees

User Bicheng
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