A polygon is a closed plane figure formed by three or more line segments that intersect only at their endpoints. A composite figure is a figure that is composed of basic polygon shapes. We can divide composite figures into the smaller basic shapes to find the total area. We review the area formulas for a square, rectangle, parallelogram, triangle, and trapezoid. We see how we can find the area of a composite figure by breaking it apart into two smaller figures and using addition. We see how we can find the area of a polygon with a missing piece by using subtraction.
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6th Grade Math 13.4a, Finding Areas Using Tangrams, Composite Figures
https://youtu.be/eZ8dCl6NNB8
6th Grade Math Course Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWg5McSxYODb2Oqvtt8AM5s
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Textbook to use:
Publisher : HOUGHTON MIFFLIN HARCOURT; Student edition (May 4, 2017)
Language: : English
Paperback : 632 pages
ISBN-10 : 1328761053
ISBN-13 : 978-1328761057
Item Weight : 3.26 pounds
Dimensions : 8.5 x 1.4 x 10.8 inches
This book may be purchased through many different online sellers.
Just search "Go Math Grade 6 2018".
Make sure you have one large textbook or the two-volume set. If the
cover says "Volume 1", then you will also need "Volume 2".