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Q.


How many diagonals are there in a hexagon?

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a

6

b

4

c

11

d

9 

answer is D.

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Detailed Solution

For a n sided polygon, the total number of diagonals can be given as,
d=nn-12-n
Given figure = hexagon
In this instance, the value of n is 6.
Now enter n's value into the formula we obtained,
 =66-12-6 
=6×52-6
=9  So, the number of diagonals in hexagon is 9.
Correct option is 4.
 
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