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10 POINTS!!!!!!!!!!! PLEASE HELP QUICKLY!!!!!! SCREENSHOT ATTACHED

10 POINTS!!!!!!!!!!! PLEASE HELP QUICKLY!!!!!! SCREENSHOT ATTACHED-example-1
User Jschnasse
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1 Answer

7 votes

Answer:

18

Explanation:

∠BCD=2x (alternate interior angles)

∠BCD+∠CDE=180° (same side interior angles)

Thus, 10x=180, meaning x=18.

User Ethan McTague
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