'Here is the sign for <a href="http://www.j-archive.com/media/2009-01-28_J_30.jpg" target="_blank">this</a> geometry term'
a perpendicular
AMERICAN SIGN LANGUAGE: Here is the sign for this geometry term
Here is the sign for this geometry term
Here is the sign for this geometry term
AMERICAN SIGN LANGUAGE
a perpendicular
AMERICAN SIGN LANGUAGE