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.
No. A trinagle does not require four points, three are sufficient. And any three points, if they are not colinear, must be coplanar.
twenty
For ( n ) collinear points, the number of line segments that can be formed is given by the combination formula ( \binom{n}{2} ), which represents the number of ways to choose 2 points from ( n ) points. This simplifies to ( \frac{n(n-1)}{2} ). Therefore, the total number of segments formed by ( n ) collinear points is ( \frac{n(n-1)}{2} ).
A closed plane figure formed by three or more line segments that do not cross is called a polygon. The line segments are known as the sides of the polygon, and the points where the sides meet are called vertices. Common examples of polygons include triangles, quadrilaterals, pentagons, and hexagons. Polygons can be classified as regular, with equal sides and angles, or irregular, with varying lengths and angles.
its a triangle
a triangle
False.
fal;se
A triangle, but only if the line segments are straight.
That figure is best described as a "triangle".
False.
polygon
There is no specific name in general. If the line segments are straight, then it is a triangle.
It is a concave figure, which can only be formed in figures with four or more lines (quadrilaterals and above).
circle
No. A trinagle does not require four points, three are sufficient. And any three points, if they are not colinear, must be coplanar.