What is the maximum area that can be enclosed by a wire 44cm long ?

1. 77 2. 154 3. 308 4.None of
these

• ANS 154
  Perimeter of circle=2*22/7*r=44cm
  From this r=7
  then area of circle=22/7*r^2=154
• 12 years agoHelpfull: Yes(23) No(1)
• 154
  
  it is a circle of radius 7 cms.
  area = 7*7*22/7 = 154 sq cm
• 12 years agoHelpfull: Yes(9) No(0)
• Answer is 154. by considering 44 as perimeter of a circle u can get its radius and then its area.
  
• 11 years agoHelpfull: Yes(4) No(0)
• circumference of enclose by a wire =2*22/7*r;
  44=2*22/7*r
  i.e. r=7;
  are of enclose by a wire =22/7*r^2
  ans=154
• 11 years agoHelpfull: Yes(1) No(0)
• 154 (Ans)
  
  explanation:
  Circle covers maximum area.
  so, perimeter of the circle is 44cm.
  radius=7cm
  area=22*7*7/7=154 QED :)
• 11 years agoHelpfull: Yes(1) No(0)
• ans)2)154
  2*pi*r=44
  r=7
  (pi=22/7)
  area=pi*r*r
  =7*7*22/7=154
• 11 years agoHelpfull: Yes(0) No(0)
• 154 sqr cm
• 10 years agoHelpfull: Yes(0) No(0)
• 2pi*r=44//
  r=7(aprx)//
  pi*r^2=154.
  AS CIRCLE IS THE LARGEST AREA CONSIDERING the SAME PERIMETER
  taking pi=22/7
• 6 years agoHelpfull: Yes(0) No(0)