(x + 16)° = 141°
Step-by-step explanation:
- Given figure is of octagon
- Sum of interior angles of an octagon is 1080°
- -> 5x° + 455° = 1080°
- -> 5x° = 1080° - 455°
- ->5x° = 625°
- -> x° = 625°/5
- x° = 125°
- x = 125
- -> (x + 16)° = (125 + 16)°
- -> (x + 16)° = 141°