Geometry Problem 1010: Regular Nonagon or Enneagon, Diagonals, Metric Relations

Geometry Problem. Post your solution in the comments box below.
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 1010.

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Nonagon or Enneagon

Index
Click the figure below to see the Nonagon or Enneagon Index.


See also:
Nonagon or Enneagon Index
Collection of Geometry Problems

Level: High School, SAT Prep, College geometry

Problem 309. Regular Nonagon, Diagonals and Side

Proposed Problem
Click the figure below to see the complete problem 309.


See also:
Complete Problem 309
Collection of Geometry Problems

Level: High School, SAT Prep, College geometry

Problem 308. Regular Nonagon or Enneagon, Midpoints, Side, Arc, Angle

Proposed Problem
Click the figure below to see the complete problem 308.


See also:
Complete Problem 308
Collection of Geometry Problems

Level: High School, SAT Prep, College geometry