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4 years ago

10

A polygon with 14 sides has how many diagonals?

1 answer:

solniwko [45]4 years ago

4 0

The number of diagonals in a polygon with n sides is $\dfrac{n(n-3)}{2}$

So, in polygon with 14 sides, there is $\dfrac{14(14-3)}{2}=7\cdot11=77$ diagonals.

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