. The length of the following rectangle is '4a' and its breadth is '2a'. Radius of the two circles is 'a'. Then find the ratio of total area of the rectangle to the area not covered by the two circles with in the rectangle

• area of rect=len*brth
  =>4a*2a=8*a*a
  area of 2 circle=2*3.14*a*a
  =>6.28*a*a
  
  then remaining area of rectangle=>(8-6.28)*a*a=1.72*a*a
  ratio is 8 : 1.72
• 12 years agoHelpfull: Yes(20) No(1)
• 8a^2 - 6.28a^2 === 1.72 a^2
• 12 years agoHelpfull: Yes(2) No(2)
• area of rect = 4a*2a = 8*a*a
  area of circles =2*3.14*a*a
  
  remaining area = (8-6.28)*a*a =1.72*a*a
  
  ratio is 8 : 1.72 or 200:43
• 12 years agoHelpfull: Yes(0) No(0)
• area of rectangle=4a*2a=8a^2
  area of two circles=2(pi*a*a)=2*pi*a^2=2*22/7*a^2=44/7*a^2
  remaining area=(8-44/7)a^2=(12/7)a^2
  
  ratio=8a^2:12/7a^2=8:12/7=56:12=14:3
• 12 years agoHelpfull: Yes(0) No(0)
• area of rectangle = 4a * 2a = 8*a*a
  area of circle = 3.14* a*a
  
  area of rectangle:area of non-circle= 8*a*a|(8*a*a-3.14*a*a) = 28/17
  
• 10 years agoHelpfull: Yes(0) No(0)