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please help thank you :)

please help thank you :)-example-1
User TTZ
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1 Answer

18 votes
18 votes

Answer:

∠7 = 85°

Explanation:

∠1 = 180 - 115 = 65° Because they are supplementary angles

∠2 = 180 - 65 - 85 = 30° Because the sum of all interior angles in a triangle

equals 180°

∠3 = 90° given

∠6 = 180 - 90 - 30 = 60° Because they are supplementary angles

∠4 = 180 - 155 = 25° Because they are supplementary angles

∠5 = 180 - 25 - 60 = 95° Because the sum of all interior angles in a

triangle equals 180°

∠7 = 180 - 95 = 85° Because they are supplementary angles

User Jeremy Herzog
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