Answer:
x = 126°
x - 30 = 96°
Explanation:
The sum of angles in a 5 sided polygon is 540°.
Hence all these angles would = 540
x + x + (x - 30) + (x - 30) + (x - 30) = 540
Collect like terms
5x - 90 = 540
Rearrange
5x = 540 + 90
5x = 630
x = 126
x - 30 = 96