1. Essentials of Geometry: An Introduction to the Basics of Geometry Mrs. Sangster

2. Term to Know Point A point has no dimension. It is represented by a dot. It is named using a letter. Example: point A

3. Term to Know Line A line is one dimensional. It extends in both directions without end. It is named using at least two points. Example: B Aline AB or line m or AB m

4. Term to Know Plane A plane is two dimensional. It is represented by a flat surface similar to a wall or floor. It extends in all directions without end. It is named using at least three points. Example: plane ABC or plane P P A B C

5. Term to Know Line Segment A line segment contains endpoints. It is named using the endpoints. Example: B Aline segment AB or AB

6. Term to Know Ray A ray contains one endpoint. It extends without end in one direction. It is named using the endpoint and one other point. Example: B Aray AB or AB

7. Check for Understanding Name the following geometric figure. G H A.) ray GH B.) ray HG C.) ray H D.) ray G

8. Postulate to Know Segment Addition Postulate A B C segment AB + segment BC = segment AC

9. Postulate to Know Segment Addition Postulate Example: A 10 B 6 C Find the length of segment AC. segment AB + segment BC = segment AC 10 + 6 = segment AC 16 = segment AC

10. Postulate to Know Segment Addition Postulate Example: A x B 14.5 C 22 Find the length of segment AB. segment AB + segment BC = segment AC x + 14.5 = 22 x = 7.5

11. Check for Understanding GH = 29.6. Find the value of x. Gx F 21.8 H A.) 21.8 B.) 8.7 C.) 51.4 D.) 7.8

12. Term to Know Angle An angle is made up of two rays that share a common endpoint. It is named using a point on each side and the vertex. Angles are classified into 4 different types. Example: B A angle BAC or <BAC or <A C

13. Classifying Angles Acute Angles Measure less than 90 degrees. Obtuse Angles Measure greater than 90 degrees.

14. Classifying Angles Right Angles Measure exactly 90 degrees. Straight Angles Measure exactly 180 degrees.

15. Works Cited Slide #1 No Author. “Holding the Sun”. Photograph. n.d. JPEG. http://www.maniacworld.com/holding-the-sun.html Slide #2 Tompsett, Michael. “Dot Map of the World”. Digital Art. 23 December 2010. JPEG. http://fineartamerica.com/featured/dot-map-of-the-world--colour-on-white-michael-tompsett.html Yoga. Night Sky Space Stars. Photograph. 8 April 2014. JPEG. http://actionforspace.com/night-sky-space-stars/ Slide #3 No Author. Railroad Tracks. Photograph. n.d. JPEG. http://geovisualdic.blogspot.com/2012_09_01_archive.html Rowse, Darren. Converging Lines. Digital Photograph. n.d. JPEG. http://digital-photography-school.com/converging-lines/ Slide #4 Tensor. “Never Ending Cornfield”. Photograph. n.d. JPEG. http://www.panoramio.com/photo/96460393 No Author. Infinity Pool. Photograph. n.d. JPEG http://cdn.designrulz.com/wp-content/uploads/2011/11/infinity-pools.jpg Slide #5 No Author. Logs in River. Photgraph. n.d. JPEG. http://www.math.hope.edu/pow.html No Author. Office Buildings. Photograph. n.d. JPEG http://www.momentousins.com/blog/?m=201208

16. Works Cited Slide #6 No Author. Sunset with Sun Rays. Photograph. n.d. JPEG. http://www.thewilltochoose.com/?attachment_id=65 Stanford, Wikimedia. Jet in Flight. Photograph. n.d. JPEG. http://www.wired.com/2010/05/laser-gallery/all/1 Slide #10 No Author. Bird Beak. Photograph. n.d. JPEG. http://elgee18.files.wordpress.com/2011/06/pelican.jpg Terrain. Birdhouse. Photograph. n.d. JPEG. http://ecosalon.com/16-minimalist-birdhouses-to-go-totally-cuckoo-over/ Content McDougal and Littell. Geometry. Houghton Mifflin Harcourt, 2007. Print.