1. Number 14 how do you find the interior angles of any polygon?
By: ella acheson

2. How to...... You count the number of sides on the polygon
Then minus 2 from the number of sides
And times that by 180
The answer is the sum of the interior angles 
Then if you want to find a missing angle just do as you would if the interior angles were 180 degrees or 360 degrees

3. Example # 1 (not drawn to scale)
Each side on this shape are are 108 degrees but there is a missing angle called x what is it?
5 – 2= 3 x 180= 540
x = 540
432 + x = 540
x = 108 degrees

4. Example # 2 (not drawn to scale)
1 side on this shape the angles are 54 degrees, two are 83 degrees and another 2 are 67 degrees and there is x, what is x?
6 – 2 = 4 x 180 = 720
x = 720
354 + x = 720
x = 366 degrees

5. Example # 3 (not drawn to scale)
3 sides on this shape are 112 degrees, 5 are 145 degrees and 3 are 42 degrees, and the last one is x, what is x?
12 – 2 = 10 x 180 = 1800
x = 1800
x = 1800
x = 614