How many diagonals are three in hexagon?

6

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8

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9

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10

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Solution

The correct option is B $9$
We know that to calculate number of diagonals in a polygon we use the formula $n \times (n - 3) / 2$

But here $n = 6$ as it is s a hexagon
$6 \times (6 - 3) / 2 = 9$

hence, there are $9$ diagonals in a hexagon

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