The length of a rectangle is twice the diameter of a circle. The circumference of the circle is equal to the area of a square of side 22 cm. What is the breadth of the rectangle if its perimeter is 668 cm?
(1) 24 cm
(2) 26 cm
(3) 52 cm
(4) Cannot be determined
(5) None of these

• opp. (2) 26 cm
  2*pi*r= 22*22
  2*r= 22^2/pi= 22^2/(22/7)= 22*7= 154
  since, d=2*r
  so, d= 154 and l=2*d= 308
  
  given, perimeter of rectangle= 668 => 2(l+w)= 668 =>2*(308+w)=668
  616+2*w= 668 => 2W= 52 => w=26 cm
• 10 years agoHelpfull: Yes(2) No(0)
• 2*pi*r=484
  r=77
  l=77*2=154
  perimeter of rectangle=2(l+b)=668
  b=26cm
• 8 years agoHelpfull: Yes(0) No(1)