In the figure, if ∠BAC = 50 and ∠BCA = , then find ∠ADC

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??? dear
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ABC+ CBA + ADC = 180 ( linear pair )
50 + 30 + ADC = 180
80 + ADC = 180
ADC = 180 - 80
ADC = 100

Hope it is clear to you

Regards.
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