Math is all around you. Take a look around and try to find some angles

or types of lines.

“Math Classroom.” Photo. Steven Lewis Secondary School 29 Sep. 2010 <http://stephenlewis.peelschools.org/photo%20of%20week%20page.htm>

An angle that measures less than 90 degrees

An angle that measures more than 90 degrees

Martens, Kayte. “School Lunch.” Photo. USA Today 20 Apr. 2008 29 Sep. 2010 < http://www.usatoday.com/news/education/2008-04-30-school-lunch-cost_N.htm >

Right Angle

An angle that measures exactly 90 degrees

“Three O'clock.” Cartoon. MLBlogs Network 1 Jan. 2009 29 Sep. 2010 < http://janeheller.mlblogs.com/archives/2009/01/mlb_network_only_three_hours_a.html >

An angle that measures exactly 180 degrees

“Open Book.” Photo. Home Possible 29 Sep. 2010 < http://www.homepossible.com.au/more_info.html >

Adjacent Angles

Two angles that have a common vertex and a common sidehttp://www.michigan.gov/mde/0,1607,7-140-5233-32711--,00.html

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Vertical Angles

Two nonadjacent angles formed by intersecting lines

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Complementary Angles

Two angles with measures that sum to 90 degrees

“Sliced Pie.” Photo. Sara Lee Foodservice 29 Sep. 2010 < http://saraleefoodservice.com/Products/Bakery/ProductDetail.aspx?ProductID=1628 >

Supplementary Angles

Two angles with measures that sum to 180 degrees

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Parallel Lines

Parallel lines are coplanar and do not intersect

“Mini School Bus.” Photo. Used-Buses 29 Sep. 2010 <http://www.used-buses.net/bustypes/school_bus.asp>

Perpendicular Lines

Lines that intersect to form right angles“Lockers.” Photo. Dimensions Guide 29 Sep. 2010 < http://www.dimensionsguide.com/school-locker-dimensions/ >

Closing SlideAngle Types Angle Pairs

Line Pairs