Assuming ALL 22 triangles are congruent, this would be a 22-gon, also known as an icositedigon
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The answer depends on the configuration of the triangles. It could be a single triangle that has been "chopped up" into triangles.
Yes, a triangle is a polygon.A polygon is any closed figure made up of 3 or more line segments. The triangle qualifies, and it is the "most simple" polygon as it has the least number of sides.A triangle is most certainly not a ploygon. However, it is a polygon.
540 degrees. you figure it out by seeing how many triangles you can make in the polygon (without crossing lines), and, because triangles equal 180 degrees, you multiply 180 times how many triangles you can make.
Any n-sided regular polygon, by joining a single vertex up to each of the others, will have a total of (n - 2) triangles inside. In this case, an 11-sided polygon will contain 11 - 2 = 9 triangles.
I think it's 3 triangles and 1 rectangle but, I'm only in 6th grade.
geodesic