A triangle
fal;se
A triangle, but only if the line segments are straight.
False.
its a triangle
3 or more
fal;se
That figure is best described as a "triangle".
A triangle, but only if the line segments are straight.
There is no specific name in general. If the line segments are straight, then it is a triangle.
This is a true statement that defines a triangle in geometry. However, there are many different types of triangles, such as obtuse, acute, scalene, right, equilateral, and isosceles triangles.
False.
False.
noncollinear
A plane
Triangle: A figure formed by exactly three (non-colinear) points joined by line segments is a triangle. A figure formed by three or more points is generally called a polygon. Of course, if all of the points are co-linear then there is not much of a figure. A polygon has 3 or more sides.
its a triangle
A plane figure has 2 dimensions (length & width$ & is represented by a flat surface. It takes 3 noncollinear points to make a plane. A solid figure has 3 dimensions. It not only has length & width but also depth. It takes 4 noncoplaner points to make space