Any two vertices of a triangle are connected by a side.
a leg
Unless the polygon is a triangle, it is a diagonal.
a chord
line segment
A diagonal
That segment is known as a "side" of the triangle.
connects two midpoints of a triangle
a leg
Unless the polygon is a triangle, it is a diagonal.
A line between two verticies is called a line segment.
A line segment connects two endpoints.
A segment that connects two midpoints of a polygon.
a line segment
In a circle, a chord is a line segment that connects two points on the circle's circumference. A triangle can be formed within a circle using the chord as one of its sides.
A side on a triangle is a line that connects two of the apexes.
a midsegment of a triangle
In geometry, a chord is a line segment that connects two points on a circle. In a triangle, chords can be drawn connecting the vertices of the triangle to create a circumscribed circle that passes through all three vertices. This circle is called the circumcircle of the triangle.