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Help I know nothing about angles.. number 12 only

Help I know nothing about angles.. number 12 only-example-1
User Recluze
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1 Answer

1 vote

Answer:

ABD= 140° 180 - 40 = 140 ABD = 140.

Explanation:

180 - 40 = 140 ABD = 140.

User Borislav Markov
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