What is the sum of the interior angle measures of a 20-gon? show all steps
The sum of the interior angle measures of any polygon can be found using the formula: (n-2) * 180, where n represents the number of sides of the polygon.
In this case, for a 20-gon, n = 20.
Substituting the value of n into the formula:
(20-2) * 180 = 18 * 180 = 3240
Therefore, the sum of the interior angle measures of a 20-gon is 3240.