Area of triangles, quadrilaterals, and polygons (CCSS 6.G.A.1). 

 - 1 online resource (12 pages) 
<br/><br/><label>ISBN: </label>9780787710101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Triangle--Juvenile literature.<br/>Shapes--Juvenile literature.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>QA482  / .A743 2014 
<br/><br/><label>Dewey Class. No.: </label>516.154