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Type: Multiple-Choice
Category: Angles
Standards: 7.G.B.5
Score: 3
Author: LBeth

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Given the following, including the fact that $ang ABC$ and $ang CBD$ are supplementary, what is the value of $mangABC$?
$mangDBC = x - 10$
$mangABC = x + 30$
1. $35deg$
2. $70deg$
3. $80deg$
4. $110deg$