text: # Plisss tolong jawabannya
  
  Posted on
  
  Plisss tolong jawabannya​
  
  Nilai a
  
  180° = 105° + 3a
  
  3a = 180° – 105°
  
  3a = 75°
  
  a = 25°
  
  Nilai
  
  180° = 105° + 3
  
  3b = 180° – 105°
  
  3b = 75°
  
  b = 25°
  
  a + b = 25° + 25°
  
  a + = 50°