Question

I got the answer as None of these.
Can anyone solve this?
Show the necessary calculations

Answer 1

by using radical axis theorem we can solve this question just the lines are passing like tanget which can creates a symmetry and now using this property i can solve this question so observe what i am doing 
radius of each cans = 1 m 
so the half rope is passing through each cans on their fence 
now there are 3cans so half rope i covering by  cans 
so perimeter of one rope fencing the can = pi r= 22/7 *1 = 22/7 
perimeter of the 3 cans covered by rope fencing = 3*22/7=66/7 and my answer is correct deepika if u delete my answer i will report u u deleted my question in my first attempt now its too much bella answer is D because actual perimeter is 66/7 

Answer 2

we can see that from diagram there are 3 big arc ( mentioned with black arc)

and 3 small arc ( mentioned with red arc).

so using property ,

=) theta = l/r

so each arc length = l = r×theta

using this we can solve this..

add all 6 arcs we get answer 66/7 m

correct option is (d)
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see attachment

hope it will help u.

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