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!25 POINTS! (2 SIMPLE GEOMETRY QUESTIONS)

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User PeSHIr
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Answer:

D for both

Explanation:

9: The upper angles in the trapezium will both be 180 - 55 = 125 degrees as they are co-interior angles.

Each interior angle of a regular octagon is equal to 180(8-2)/8 = 135 degrees.

Therefore x = 360 - 135 - 125 = 100 degrees.


I’ve already done Q10 before but the polygon has 5 vertices then it has 5 sides so the sum of its interior angles is 180(5-2) = 540 degrees.

User StanfordNLPHelp
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