SOLUTION: What is a line segment joining two sides of a polygon?

Question 1130861: What is a line segment joining two sides of a polygon?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

A line segment joining two adjacent vertices of a polygon is called an. A line segment joining two non-adjacent vertices is called a .
Sometimes you need to find the point that is exactly between two other points. This middle point is called the "". By definition, a of a line segment is the point on that line segment that the in two .
If the end points of a line segment is (, ) and (, ) then the midpoint of the line segment has the coordinates:
(,)
In a triangle, the joining the midpoints of two sides is parallel to the third side and half as long. Conversely, the line joining points on two sides of a triangle, parallel to its third side and half as long is a .

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