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What is the measure of angle a1? --> This was difficult for me. Is there anybody can help?

What is the measure of angle a1? --> This was difficult for me. Is there anybody can help?
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5 votes
What is the measure of angle a1?
--> This was difficult for me. Is there anybody can help?

What is the measure of angle a1? --> This was difficult for me. Is there anybody-example-1
User Andrmu
by
8.4k points

2 Answers

5 votes

Answer:

D. 40

Explanation:

User Fluxa
by
8.0k points
2 votes

Answer:

40°

Explanation:

Alternate angles

Angles BAC and ACD are equal

User Thvo
by
8.0k points
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