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What is the vale of of???

What is the vale of of???-example-1
User Tot
by
6.8k points

2 Answers

3 votes

Answer:

B

Explanation:

∠ BDC = 9x ( vertical angles )

∠ ABD and ∠ BDC are supplementary , thus

∠ ABD + ∠ BDC = 180 , substitute values

2x + 105 + 9x = 180 → B

User Mmcnickle
by
7.0k points
3 votes

Answer:

B

Explanation:

Because ∠EDF and ∠BDC are vertical angles, ∠D = 9x. Since ∠ABD and ∠BDC are supplementary, our answer is 2x + 105° + 9x = 180° or B.

User Jesi
by
6.6k points