1. Geometry Mr. White

2. Obtuse an angle whose measure is greater than 90 but less than 180 degrees

3. Right Angle an angle whose measure is 90 degrees

4. CUT Acute Angle an angle whose measure is greater than 0 but less than 90 degrees

5. Perpendicular Lines 2 segments, rays, or lines that form a 90 degree angle

6. Tessellation a covering of a plane with congruent copies of the same region with no holes or overlaps

7. Line Segment the set of points consisting of two distinct points and all inbetween them

8. Y Coordinate Plane a plane in which every point is identified with exactly 1 number and vice versa X

9. RAY B A a one-dimensional figure that consists of one endpoint A, one point B, all of the points on AB , and all points for which B is between them and A

10. Parallel Lines two or more coplanar lines that have no points in common or are identical

11. Parabola the set of all points in a plane equally distant from a given point and a given line not containing the point