Answer:
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°
