fal;se
A triangle, but only if the line segments are straight.
A triangle
False.
polygon
fal;se
That figure is best described as a "triangle".
A triangle, but only if the line segments are straight.
A triangle
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.
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.
False.
a triangle
False.
polygon
It is a concave figure, which can only be formed in figures with four or more lines (quadrilaterals and above).