72 and 45 can both be divided by 3.
So,
72 + 45
= 3 (24 + 15)
The formula for the sum of the measures of a polygon's interior angles is 180(n-2), where n is the number of sides.
3060 = 180(n-2)
17=n-2
19=n
Therefore, the polygon has C. 19 sides.
By that information only i would think the answer is 45k+20, sorry if that’s not right
I checked my answer on a graph and the line turned out to be horizontal. When the line is horizontal it is called a zero slope line. There is no slope.
