Latest TCS Aptitude Question SOLUTION: 6. Three unit circles are inscribed in a circle. Find the area of the largest circle touching these three circles?

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6. Three unit circles are inscribed in a circle. Find the area of the largest circle touching these three circles?

Asked In TCS Bishal Pandey (10 years ago)

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CHANDAN TIWARY  (10 years ago)

Firstly take the centre of first circle at co-ordinate(0,0),then you get (2,0) and (1,sqrt(3)) two other coordinate.now incentre will be calculated and it will be at point (1,1/sqrt(3)),so the radius of big circle will be "distance b/w incentre to any point i.e.1.154700+1"so final radius of big circle will be 2.1547.so area will be 14.585 sq. unit

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way  (10 years ago)

14.585 sq unit

Is this solution Helpfull? Yes (8) | No (7)  

Mohona Ghosal  (10 years ago)

diameter of the bigger circle will b 4 as each circle has radius 1 so diameter of the smallr circles will be 2 so
area will b 3.14*2*2=12.56

Is this solution Helpfull? Yes (3) | No (6)  

Shashank Salaj  (10 years ago)

radius of the biggest circle will be the sum of diameter of a circle and radius of third circle.
R=2+1=3
area= 22/7*(3*3)
=28.27

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DHRUV KUMAR  (10 years ago)

the radius of bigger circle is 2 times of smaller circle
so the radius is 2
area= (22/7)*(2*2)
= 11.1

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kumar  (10 years ago)

@way
explanation?
i need your help ,can you give me your mail id

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camelia saha  (10 years ago)

it will be pi*r^2=4pi

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ARUN GUPTA  (10 years ago)

ques is incomplete...

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