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I’m confused about this question

I’m confused about this question
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I’m confused about this question

I’m confused about this question-example-1
User Kroiz
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angle B is 102° bc 180-78=102 and if sides DB and BC are congruent, angles D and C must also be, so you can use the original 78 and divide by 2 to get 39° for angle C
User Jobo Fernandez
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