A polygon has interior angle of 156 degree how many diagonal are their in polygon.

• (n-2)*180/n =156;
  n=15;
  no of diaognals = 15C2 - 15= 90
  
• 10 years agoHelpfull: Yes(10) No(0)
• 80
  156=(n-2)180/n n=15
  no of diaognals = 15*12/2=90
• 10 years agoHelpfull: Yes(4) No(1)
• 90
  156=(n-2)*180/n
  n=15
  no of diagonals= nC2-n
  15C2-15=90
  
• 10 years agoHelpfull: Yes(3) No(1)
• i think
  13
• 9 years agoHelpfull: Yes(0) No(2)