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There is a circle, which circumscribes three unit circles which are tangential to each other. What is the circumference of the bigger circle?
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- diameter of 3 circles=2+2+2 so the radius of bigger circle=3
circum=2*pie*r=6pie - 10 years agoHelpfull: Yes(1) No(7)
- assuming circum ferance of circle1=2*pi*r
circumferance of 3 cirle=3*(2pi*r)=6pi*r
if r is 1 unit of the bigger circle den circumferance of bigger circle=6pi - 10 years agoHelpfull: Yes(0) No(5)
- by Pythagoras formula:
radius of bigger circle is root(2)
so ans is 2*pi*root(2)
- 10 years agoHelpfull: Yes(0) No(2)
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