NIMCET 2012 Question Paper with solutions

Question : 39 of 120

Marks: +1, -0

In which of the following regular polygons, the number of diagonals is equal to number of sides?

Solution:

For pentagon,
Number of sides, n = 5
Number of diagonals =

↖{5}C_2

- 5 =

{5.4}/2

- 5
= 10 - 5 = 5
Hence, number of sides is equal to number of diagonal of pentagon.

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