# G.GCO.1 Midpoint Definition

- Author:
- Dan Dale, Tim Brzezinski

- Topic:
- Geometry

In the applet below,

**point M**is said to be the**midpoint**of the**entire segment**you see. Interact with this applet for a minute, being sure to change the locations of the segment's endpoints each time before re-sliding the slider. After doing so, please answer the question below the applet.The applet above dynamically illustrates the definition of a

**midpoint**of a**segment**.**Without using the words "half", "halfway", or "middle"**, explain what a**midpoint**of a**segment**is in your own words. That is, complete the following sentence definition: A**midpoint**of a**segment**is a... (If you're not sure, you can find a hint by clicking**here**).