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The formula for the number of diagonals that an N-sided polygon has is
# diagonals = N(N-3)/2
N(N-3)/2
9(N-3)/2
9*(9-3)/2
9*6/2 = 54/2
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∙ 14y ago
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How many parallel sides are there in a regular polygon with eleven sides?
None.
How many parallel sides in a 25 sided polygon?
None. Since the number of sides is odd, there can be no parallel sides.
How many shapes have parallel lines?
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
How many parallel sides does an octogan have?
Their are 4 pairs of parallel sides on an octagon. In fact, for any regular polygon with an even number of sides, there will be # of sides / 2 number of pairs of parallel lines.
What do you call a shape with two parallel sides that are not necessarily equal?
There are infinitely many such shapes. A polygon with 4 or more sides can have two sides that are parallel and they need not be the same length.
How many parallel sides does a 10 sided regular polygon have?
5 pairs of parallel sides.
How many parallel sides are there in a regular polygon with eleven sides?
None.
How many parallel sides in a 25 sided polygon?
None. Since the number of sides is odd, there can be no parallel sides.
How many parallel sides does have a regular polygon of 100 sides?
How many shapes have parallel lines?
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
How many parallel lines a decagone have?
A decagon has 10 sides. Any regular polygon with four or more sides will have pairs of sides that are parallel. A decagon will have 5 pairs of parallel sides.
How many parallel sides in a 25 sided regular polygon?
65
How many parallel sides are there in a 7 sided regular polygon?
None.
How many parallel sides does polygon have?
A 3-sided polygon has 0 parallel sides. A 4-sided polygon can have 0, 2 or 4 parallel sides. A 5-sided polygon can have 0, 2, 3 or 4 parallel sides. In general, an n-sided polygon can have 0, 2, 3, ..., n-1, or n parallel sides where n>5. A polygon with n sides can have n pairs of parallel sides (if n is even) or (n-1)/2 pairs if n is odd AND greater than 3. But it need not have any.
How many parallel sides are in a 11 sided regular polygon?
None. (As there are an odd number of sides, each side is opposite a vertex and there are no parallel sides.)
How many parallel sides does an octogan have?
Their are 4 pairs of parallel sides on an octagon. In fact, for any regular polygon with an even number of sides, there will be # of sides / 2 number of pairs of parallel lines.
How many parallel sides does a polygon have?
A polygon with n sides can have n pairs of parallel sides (if n is even) or (n-1)/2 pairs if n is odd AND greater than 3. But it need not have any.
