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An 18-gon, also known as an octadecagon, has 18 sides. To find the number of triangles in an n-gon, you can use the formula (n-2)C3, where C represents a combination. Plugging in n=18, we get (18-2)C3 = 16C3 = 16! / (3!(16-3)!) = 16! / (3! * 13!) = 161514 / 321 = 560. Therefore, an 18-gon has 560 triangles.
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How many sides on an 18-gon?
There are 18 sides
How many interior angles does a 18-gon have?
(18-2)*180 = 2880 degrees
How many triangles can you form in a hexagon from one vertex?
18
What do you call a solid with 18 faces?
18-gon is its name.
How many triangles can you form is you draw all the diagonals of a hexagon?
The answer would be 18.
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