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# Blake's presentation

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### Blake's presentation

1. 1. Geometry<br />By Blake Abel <br />This is what I’ve learned so far.<br />I hope you like it!!<br />
2. 2. Line Segments<br />A line segment is a fraction of a line. It only goes from one end point to the other.<br />
3. 3. Rays<br />A ray is simply discribed as a half-line, because it goes forever in ONLY ONE DIRECTION. <br />
4. 4. Lines<br />Lines move forever in two directions. Example-like right and left or north and south.<br />
5. 5. Polygons<br />Polygons cannot have <br />curved line segments<br />Intersecting line segments<br />And must have three or more sides<br />
6. 6. Parallel lines<br />Parallel lines are lines that NEVER meet.<br />Like the lines below.<br />
7. 7. Perpendicular lines<br />Perpendicular lines are lines that meet at Right Angles.<br />
8. 8. Concave Polygons<br />Concave Polygons are polygons with at least one side ‘Pushed In’.<br />
9. 9. Convex Polygons<br />Convex Polygons are polygons with at least one side ‘Pushed Out’.<br />
10. 10. How to measure Angles<br />You use a protractor to measure angles by lining up the hole with the vertex and measuring. I’ve marked Right Angles.<br />
11. 11. Acute Angles<br />Acute angles are smaller than 90°. <br />I’ve made one below.<br />
12. 12. Right Angles<br />Right Angles are angles you can fit paper into. They are 90° angles. I’ve made one below.<br />
13. 13. Obtuse Angles<br />Obtuse angles are bigger than 90°. But smaller than 180°. I’ve made one below.<br />
14. 14. Reflex Angles<br />Reflex angles are angels that are bigger than 180°. I’ve made one below.<br />