1 Answer

Todd Christensen · Answer 1 · 2021-04-17T20:53:40+0000

Answer:

<ADC=131°

Explanation:

<ADC= <ADB+<BDC

We need to substitute the angle measures and simplify to get:

<ADC=89+42

This simplifies to give us:

$m \angle \: ADC = 131 \degree$

The correct answer from the given options is the first choice.

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