isoceles triangle
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an equilateral triangle
A polygon can have any number of sides above three. The name of a three-sided polygon is a triangle.
because there is no other polygon that has three sides excpt a triangle!!!!!!!!!!!!!!!!!!!
Isn't that an Isoceles Triangle?
Since a three sided polygon is another name for a triangle. We would use the formula of * (n - 2)180 = degrees of the polygon * n = number of sides of the polygon * (3(sides) - 2)180 * (1)180) * = 180o