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SAT-MATH/U4/Lines, Angles, and Triangles/sat-math-geo2-098

Lines, Angles, and Triangles

SAT Math· difficulty 4/5

What is the measure of each exterior angle of a regular nonagon (9 sides)?

  • A

    36°36°36°

  • B

    30°30°30°

  • C

    45°45°45°

  • D

    40°40°40°

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Explanation

3609=40°\frac{360}{9}=40°9360​=40°.

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