# Geometry 1.5.3 Bisect This (Part 1)

- Author:
- Sabrina Cook, mark vasicek, Katie Akesson

- Topic:
- Geometry

1. Estimate the location of a point, D, so that angle DBA is approximately congruent to angle CBD.
2. Measure angles DBA and CBD with the angle measurement tool.
3. Check your results by doing a DRAG TEST. (This is where you try to drag each of the points. If the construction stays true, it works; if the construction doesn't stay true, it fails and is not a good construction.)

When you create ray BD in this manner, you see that ray BD is NOT a true angle bisector. Explain in sentences why this method doesn't work. Sentence Frame: "This method doesn't work because ___."