Final answer:
The Houghton Mifflin geometry teacher's book is not available in PDF format for free, but there are other online resources that can help with geometry.
Step-by-step explanation:
The Houghton Mifflin geometry teacher's book is not available in PDF format for free. However, there are other online resources that can help with geometry.
The Houghton Mifflin geometry teacher's book is not available in PDF format for free, but there are other online resources that can help with geometry.
One option is the OpenStax Geometry textbook, which can be accessed for free in web view or PDF through openstax.org. Another option is the Dartmouth College Math Department website, which provides a comprehensive online resource for geometry lessons and materials.