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Tell me the sides!
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: Tell me the sides! ( 3052 )
Tell me the sides!
«
:
June 18, 2007, 08:59:08 PM From
Poonam
»
Tell me the sides!
How many sides are there in a polygon which has 66 diagonals?
Alternatively, how many people are there in a party where each person shakes hands with every person and the total number of hand shakes are 66?
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Re: Tell me the sides!
«
#1 :
June 20, 2007, 01:07:05 AM From
PSM
»
answer is 12 sides....or 12 persons....
Re: Tell me the sides!
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#2 :
July 16, 2007, 11:28:37 PM From
Prateek
»
Yes 12 is the answer.
The general formula is n*(n+1)/2
Re: Tell me the sides!
«
#3 :
August 17, 2007, 11:29:49 PM From
Shashi
»
its n(n1)/2
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