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A diagonal line of a polygon is a line that joins any two vertices not already joined by a side.
A polygon with n sides has n(n-3)/2 diagonals
→ an octagon has 8(8-3)/2 = 8 × 5 ÷ 2 = 20 diagonals
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How many symmetry does an octagon?
A regular octagon has 8 lines of symmetry.
How many lines of symmetry in a octagon?
A regular octogon has 8 lines of symmetry. * * * * * An irregular octagon can have 0, 2 or 4.
How many lines of symmetry is there in a regular octagon?
There are eight lines of symmetry.
Octagon can be divided into triangles by drawing how many straight lines?
yes
What letter is made with 2 diagonal lines?
What letter is made with 2 diagonal lines? i ask it because
How many diagonal lines in a octagon?
4
How many diagonal lines in a regular octagon?
neff
How many diagonal lines can you make in a octagon?
There are 20 diagonals in an 8 sided octagon
Does a octagon have 4 lines of symmetry?
yes, diagonal to the right and left, horizontal, and vertical.
How many diagonal lines of symmetry are there in an octagon?
Assuming thatdiangle = diagonalsemetry = symmetryoctigon = octagonthe answer is 0, 1, 2, 4 or 8.
How many parallel lines does an octagon?
An octagon had four pairs of parallel lines.
How many lines of reflective symmetry does an octagon have?
An octagon has 8 lines of reflective symmetry.
How many lines in octagon?
An octagon is an eight-sided figure.
How many diagonal lines are there in a heptagon?
A heptagon has 4 diagonal lines and 7 sides and it has 2 congruent diagonal lines and 2 congruent triangles
The sum of the interior angle measures of an octagon?
To find interior angle measurements, you must divide the shape into triangles by drawing diagonal lines. The diagonal lines draw triangles, and the interior angle measure of triangles are always 180 degrees. The sum of interior angles of an octagon is 1080 degrees. How ever many triangles you have, multiply it by 180. See octagons in the link for more help,
How many diagonal for the hexagon?
There are four diagonal lines in a hexagon.
Why are there 20 diagonal lines in an octagon?
Because it complies with the formula: 0.5*(n2-3n) = number of diagonals An octagon has 8 sides and so: 0.5*(64-24) = 20 diagonals
