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1/2*(n2-3n) where n is the number of sides of the polygon.

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Q: What is the formula for the number of diagonals?
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Related questions

What is the formula for the number of diagonals from a vertex?

Number of sides - 2


How many diagonals in triangle to dodecagon?

The formula is: 0.5*(n2-3n) = number of diagonals when n is the number of sides of the polygon


What is the formula to determine the number of diagonals in a polygon?

It is: 0.5*(n2-3n) = diagonals whereas n is the number of sides of the polygon


How do you get the total number of diagonals of a polygon?

The formula is: 0.5*(n2-3n) = diagonals whereas n is the number of sides of the polygon


What is the total number of diagonals?

Total diagonals formula: 0.5*(n^2 -3n) whereas n is the number of sides of the polygon


What is the formula for the number of diagonals in a hexagon?

n side polygon has n(n-3)/2 diagonals therefore a hexagon has 9 diagonals


What is the formula for the sides of a polygon if the diagonals are given?

1/2*(n2-3n) = number of diagonals Rearranging the formula: n2-3n-(2*diagonals) = 0 Solve as a quadratic equation and taking the positive value of n as the number of sides.


How yo find the formula on how to solve the number of diagonals in a polygon?

It is: 0.5*(n2-3n) = diagonals whereas 'n' is the number of sides of the polygon


What is the formula to find the diagonals of a figure?

1/2*(n2-3n) = diagonals when n equals number of sides.


What is the formula for the number of diagonals in a nonagon?

For a 9 sided polygon it is: 0.5*(92-(3*9)) = 27 diagonals


How do you find the number of sides of a polygon given the number of diagonals?

Using the formula (x)(x-3)/2 = Diagonals ; simply replace the diagonals with the number of diagonals you're given. Then, you'll havev (x)(x-3)/2 = Diagonals. Simplify it, and you'll be given x(power of 2) - 3X = (2)(Diagonals). Subtract the amount of diagonals from both sides, and you'll have x(power of 2) - 3X - 2Diagonals = 0. From there, use the quadratic formula to find the number of sides the polygon has.


What is the number of diagonals with a number of 28 sides?

If it has 28 sides then it has 350 diagonals by using the formula 0.5(n^2 -3n) whereas 'n' means number of sides