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I’m confused on this one
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I’m confused on this one

I’m confused on this one-example-1
User Vszholobov
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1 Answer

1 vote
AD = CD
BD = BD
<C = <A = 90
Triangle ABD = Triangle CBD
so <ABD = <CBD = 18°

<ABC = <ABD + <CBD = 18° + 18° = 36°

Answer
<ABC = 36°
User Gianluca Bianco
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