Hence, find the size of each interior angle of a regular with 18
sides.

2, 880 degrees

Step-by-step explanation:

An interior angle is located within the boundary of a polygon. The sum of all of the interior angles can be found using the formula S = (n - 2)*180. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.

So, you have a regular polygon with 18 sides. This means you do...

S = (18 - 2) * 180.

This gives you an FINAL answer of 2, 880 for the interior angles.

If you are trying to find EXTERIOR angles, it is the same formula, except you divide that number by the number of sides you have, which is 18.

2,880/18 = 160

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)