Ball, Johnny, <br/><br/>
Why Pi? / 
Johnny Ball. 
 - New York :  Dk Publishing,  2016. 
 - 93 pages :  color illustrations ;  28 cm 
<br/><br/> Includes index.  "Big questions about math"--Cover. 
<br/><br/> Introduces the concepts of measurement and mathematics, discussing their use throughout history, along with examples of how they are used in everyday life in calculating temperature, light, electricity, time, music, and objects in space.-- 
<br/><br/><label>ISBN: </label>9781465443878 1465443878 
<br/><br/><label>LCCN: </label>2016304739 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Measurement--Juvenile literature.<br/>Mathematics--Juvenile literature.<br/>Pi--Juvenile literature.<br/>Mathematics.<br/>Measurement.<br/>Pi.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Juvenile works.<br/>Literature.
<br/><br/><label>LC Class. No.: </label>QA465  / .B168 2016 
<br/><br/><label>Dewey Class. No.: </label>530.8