We know that
The exterior angle measures of a polygon must add up to 360°,
therefore
360°/72°=5 exterior angles
so
5 exterior angles, would mean 5 interior angles and therefore 5 sides to the polygon
The exterior angle and the interior angle of any polygon are supplementary and must add up to 180°.
exterior angle+interior angle=180°
interior angle=180°-exterior angle
interior angle=180°−72°-------> 108°
Each interior angle is 108°
The sum of the interior angles would be
5*108°=540°
the answer is
540°
The answer I think if I’m correct is Minnie
Answer:
Not Always
example:
Yes:
12 - 4 + 20 - 16 - 32
32 - 48 = -20
No:
23 - 8 + 21 - 7 + 2 - 6 = 25
