The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees.
1260 degrees
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The answer depends on what elements of a nonagon you measure.
The sum of the interior angles of a nonagon is calculated using the formula (n - 2) × 180°, where n = 9. Substituting the values, we get (9 - 2) × 180° = 1260°. This means the total sum of all interior angles in a nonagon is 1260 degrees. Each interior angle in a regular nonagon is 140 degrees.
1260
1260 degrees
360 degrees