Geometry Final Flashcards

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Questions and Answers

What is the value of x?

98 degrees

What is the measure of an interior angle of a regular 12-gon?

150 degrees

How many sides does a polygon have if each exterior angle measures 60 degrees?

6

What must m ___?

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Study Notes

Geometry Flashcards Summary

  • The value of x is determined to be 98 degrees through the equation 720 - 622 = 98.
  • A regular 12-gon, also known as a dodecagon, has an interior angle measurement of 150 degrees calculated using the formula ((n-2) \times 180/n) where n is the number of sides.
  • A polygon with each exterior angle measuring 60 degrees will have 6 sides, derived from the formula where the sum of exterior angles equals 360 degrees: (360/60 = 6).

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