Find the number of sides the polygon has if the number of diagonals that can be drawn in a polygon is 119.

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Solution

The correct option is B
17

The number of diagonals that can be drawn in an `n' sided polygon is $\frac{n (n - 3)}{2}$ n (n-3) = 238 $\Rightarrow$ n = 17

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Find the number of sides the polygon has if the number of diagonals that can be drawn in a polygon is 119.

The correct option is B 17 The number of diagonals that can be drawn in an `n' sided polygon is n(n−3)2 n (n-3) = 238 ⇒ n = 17

The correct option is B
17

The number of diagonals that can be drawn in an `n' sided polygon is $\frac{n (n - 3)}{2}$ n (n-3) = 238 $\Rightarrow$ n = 17