Challenge 19: Add Segment Lengths
- Gerry Stahl
In dynamic geometry, you can construct figures that have complicated dependencies of some objects on other objects. Here you will construct one segment whose length is dependent on the lengths of two other segments. Use the compass tool to copy the lengths of the line segments. Creating line segment length DG = AB + BC provides a good visual image when you drag point B. Discuss with your team how to do each step, especially step 2. Do you see how you can use the compass tool to lay out segments with given lengths (like the lengths of AB and BC) along a given line (like DE)? Chat with your teammates about the difference between the circle tool and the compass tool.