Find the measures of an interior angle and exterior angle of a regular dodecagon

Total interior angle is 1800°

Total exterior angle is 360°

Step-by-step explanation:

The total number of exterior angle of any polygon (n-sided shape) is always 360°.

Formula for total interior angle is (n-2) 180°

A duodecagon is a shape with 12 sides.

Therefore n is 12.

Substituting n for 12;

Total interior angle = (12-2) 180°

= (10) 180°

=1800°