The perimeter of two similar triangles ABC and PQR are 36cm and 24cm respectively. If PQ=10cm, then AB is

• In similar triangles,
  
  ratio perimeter = ratio of respective sides
  
  so AB/PQ = 36/24
  AB = 10*36/24 = 15 cms
• 11 years agoHelpfull: Yes(5) No(1)
• Ans=20/3 cms
  If one side (PQ) is in ratio of 10/36 for perimeter of 36
  then for perimeter of 24 the similar side ratio=AB/24 ->AB=24*10/36=20/3 cms
• 11 years agoHelpfull: Yes(1) No(1)