midpoint of line segment AB
midpoint of line segment CD
midpoint of line segment EF
midpoint of line segment GH
![midpoint of line segment AB midpoint of line segment CD midpoint of line segment EF midpoint of line segment GH class=](https://us-static.z-dn.net/files/d32/f9733084ea65d262f20249b71e9534c6.jpg)