you subtract 3 from the number of sides then multiply that by the number of sides divided by 2
A 7 sided polygon has 14 diagonals
The equation is: 0.5*(n2-3n) = diagonals whereas n is the number of sides of the polygon
Well, honey, that would be rectangles. Those four-sided figures have diagonals that are equal in length and intersect at right angles outside the shape. So, if you're looking for a shape with some perpendicular diagonal action, rectangles are where it's at.
Find the midpoint of the two diagonals
11
Number of diagonals = 18*(18-3)/2 = 135
n(n - 3)/2. where n is the number of sides in the shape
To find the number of diagonals in a polygon with ( n ) sides, you can use the formula: (\frac{n(n-3)}{2}). For a 152-sided shape, the calculation would be (\frac{152(152-3)}{2} = \frac{152 \times 149}{2} = 11376). Therefore, a 152-sided shape has 11,376 diagonals.
It depends on the shape. A square has no diagonals.Improved Answer:-A square has 2 diagonals in common with all other quadrilateralsThe formila is: 0.5*(n2-3n) = diagonals whereas n in the formula represents the number of sides the polygon or shape has
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The number of diagonals will depend on the precise shape.
Any quadrilateral (4-sided shape) has 2 diagonals.
5(5-3)/2. That it is the formula so that shape would have 5 diagonals. n(n-3)/2 where n is the number of sides
The answer depends on whether the shape is 2-dimensional or 3-d. For a 2-dimensional polygon with n sides, the minimum number is n-3 diagonals.
A shape with five diagonals is a hexagon. A hexagon has six sides, and the formula for calculating the number of diagonals in a polygon is given by ( \frac{n(n-3)}{2} ), where ( n ) is the number of sides. For a hexagon, substituting ( n = 6 ) results in ( \frac{6(6-3)}{2} = 9 ) diagonals. Therefore, a shape that specifically has five diagonals is a pentagon, as it fits the formula with ( n = 5 ): ( \frac{5(5-3)}{2} = 5 ).
You connect the points that it has, corner to corner and count them. Moo
It is: 0.5*(n2-3n) = diagonals whereas 'n' is the number of sides of the polygon
35 diagonals