Providing it is a regular nonagon: Exterior angle: 40 degrees Interior angle: 140 degrees
Each exterior angle measures 40 degrees
The interior angles of a nonagon add up to 1260 degrees
It is: 180-exterior angle = interior angle
Method 1: Exterior angle of n-sided regular polygon is 360/n degrees, in this case 40 so interior angle is 180 - 40 ie 140 degrees; Method 2: Interior angles of regular n-sided polygon total 180n - 360 degrees, in this case 1260 degrees so each angle is 1260/9 ie 140 degrees.
140 degrees.
Exterior angle is 360/9 ie 40 so interior angle is 180 - 40 ie 140.
Providing it is a regular nonagon: Exterior angle: 40 degrees Interior angle: 140 degrees
Each exterior angle measures 40 degrees
The interior angles of a nonagon add up to 1260 degrees
The measure of the exterior angle.
It is: 180-exterior angle = interior angle
yes
Method 1: Exterior angle of n-sided regular polygon is 360/n degrees, in this case 40 so interior angle is 180 - 40 ie 140 degrees; Method 2: Interior angles of regular n-sided polygon total 180n - 360 degrees, in this case 1260 degrees so each angle is 1260/9 ie 140 degrees.
Each interior angle will measure 156 degrees
Each interior angle will measure 162 degrees
It is: 180-exterior angle = interior angle because there are 180 degrees on a straight line