1440 degrees
1260 degrees
1440 degrees
1800 degrees
Each interior angle measures 135 degrees Each exterior angle measures 45 degrees
72 degrees
1440 degrees
1260 degrees
1440 degrees
1800 degrees
Each exterior angle measures 15 degrees Each interior angle measures 165 degrees
Each interior angle measures 135 degrees Each exterior angle measures 45 degrees
How many sides does a regular polygon have if each exterior angle measures 20?
20
It will have 9 equal sides.
The measure of one exterior angle of a regular 18-gon is 20°. The sum of all exterior angles of a regular polygon is always 360° so the measure of each exterior angle can be calculated by dividing 360° by the number of sides. In this case that would be: 360° 18 = 20°Therefore the measure of one exterior angle of a regular 18-gon is 20°.
Each exterior angle measures 18 degrees Each interior angle measures 162 degrees