b.	Identify and describe right, acute, obtuse, and straight angles. <br /> <br /> <img src="http://emed.nucenter.org:8171/2011-05-13/3.1b+Angles+%25E2%2580%2593+right%252C+acute%252C+obtuse%252C+straight-posterimage.png" alt="http://emed.nucenter.org:8171/2011-05-13/3.1b+Angles+%25E2%2580%2593+right%252C+acute%252C+obtuse%252C+straight-3.m4v" height="360" class="aligncenter posterimg" width="480.0" />

3.3b Associate 90°, 180°, 270°, and 360 with ¼, ½, ¾, full turn

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