Encyclopaedia Britannica Educational Corporation <br/><br/>
Triangles and beyond / 
by Encyclopaedia Britannica Educational Corporation 
 - Chicago :  Encyclopaedia Britannica Educational Corporation ;  1998.  
 - 49 pages :   illustrations ;  28 cm .  
 - Mathematics in Context .
<br/><br/> Supplemental math textbook - Student activities involving triangles 
<br/><br/><label>ISBN: </label>0782615457 
<br/><br/><label>LC Class. No.: </label>QA135.5 
<br/><br/><label>Dewey Class. No.: </label>516