I believe that's called a triangle... if not, a 3d example would be a pyramid.
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No, a 3-d answer would not be a pyramid because that has a minimum of 4 faces. A triangle (on its side) is the answer.
Yes, any closed shape with three sides is considered a triangle.
actually circles have one side... no shape exists, that has no sides
there is no shape with 2 sides. it is an angle.
A shape's sides are called faces.
no but the they are the points that connect the sides
A circle. All its sides are single points. random
A shape with three linear sides and one curved side can be drawn, but such a shape has no specific name.
Yes
There is no specific name for such a shape.
A nonagon is a 2 dimensional shape that has nine sides. A polygon on the other side refers to a plane that is 2D and has three straight sides.
Here are three: equilateral triangle, square, and cube
A shape cannot have only one side because it would not be closed. A shape must have at least three sides to be a closed figure (no "gaps")
Yes, any closed shape with three sides is considered a triangle.
The 9-side shape
actually circles have one side... no shape exists, that has no sides
They all have sides, and they are all shapes.
there is no shape with 2 sides. it is an angle.