If the area of a square is increased by 69%, by what & has its side increased?

• let side be 10
  Area of square a^2=100.
  increased by 69% now a^2=169
  Then a=13
  10*x/100=3 ie.,13-10=3
  x=30%
  side increased by 30%
  
• 12 years agoHelpfull: Yes(12) No(2)
• Let side is x then area = x^2
  Now X1^2=169*x^2/100
  or X1=sqrt(169*x^2/100)
  or X1=13x/10
  (X1-x)*100/x
  or (13x-10x)*100/10
  0r 30%
  So, ans is 30%
• 10 years agoHelpfull: Yes(1) No(0)