Henderson, David W. <br/><br/>
Experiencing geometry :  on plane and sphere / 
 Experiencing geometry on plane and sphere. 
by David W. Henderson ; with writing input from Eduarda Moura ... [et al.]. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  1996. 
 - xxiv, 193 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 177-188) and index. 
<br/><br/>Straightness and symmetry--Straightness on a sphere--What is an angle?--Straightness on cylinder and cone. 
<br/><br/><label>ISBN: </label>0133737705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry.