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3. Areas of Rectangles and Squares
Handle: Document-16898
Owner: Leo, Steve (User-6296, sleo:DocuShare)DS
Monday, March 17, 2003 07:30:21 PM EST
Wednesday, January 2, 2008 09:49:47 AM EST
Modified By: Dickenson, Rhonda (User-8396, rhonda.dickenson:gvwfl)DS
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  • Chapter 9
Math 7Class NotesAreas of Rectangles and SquaresFormulas1.
  • Area of a Rectangle: A = lw
2.
  • Area of a Square: A = s
2** IMPORTANT **When finding area – Units are always squared.
  • Label, label, label
Find the area of rectangle ABCDAB4.65 cmCD9 cm.
  • sq.
  • OR 41.85 sq. M
L A = s2 A = (17.25 cm)2 A = (17.25cm)(17.25 cm) [show multiplication work – no calculator] A = 297.5625 cm2 OR 297.5625 cm. cm.Textbook pages 250-253
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Appears In: Chapter 9
Preferred Version: 3. Areas of Rectangles and Squares