geometry vocab

2. isometric transformation that also maps every point to an image. It turns a figure about a fixed point which is called center of rotation.
4. part of a line consisting of two endpoints and all points in between. It is written like EF, AD, RK, QR etc.
5. a point or line common to lines or surfaces that intersect. Two lines meet at this and can create perpendicular lines.
8. slides an object from a fixed distance or direction. It is also an isometric transformation that maps every point to an image.
10. when the shape changes in size. An example is when a triangle gets really small and compresses.
12. pair of angles that lie on the outer side of the two parallel lines. But on either side of the transversal line.
16. angles formed when two lines intersect. They are linear if they a formed by two intersecting lines.
17. a flat surface made up of points.It would be three or more points.
18. intersecting system of lines. It is what the alternate, corresponding and consecutive angles lie on.
19. of something into two equal or congruent parts, usually by a line. This line is then called a bisector.
20. a part, share, or number considered in comparative relation to a whole. They connect or relate to a constant.
21. a location of the graph. It has no shape or size.
22. an isometric transformation that maps every point to an image. A example is point P to point P' and it is reflected off of a y or x axis.

1. usually a decimal which scales, or multiplies, some quantity. To find it you put one number on top of the other and divide depending on enlargement or reduction.
3. each of the pairs of opposite angles made by two intersecting lines. Vertical is similar to the vertex of two triangles
6. value of something compared to another thing. A example is one apple to one orange, 1:1
7. said to be similar if they are the same shape. But they must be congruent meaning similar in shape and size.
9. two angles that have a common vertex and a common side but do not overlap. There is obtuse and acute.
11. two points that form and line with no thickness or width. Some say it is a dot that went for a walk.
13. a point or value that marks the end of a ray or one of the ends of a line segment or interval. Two connected equals a line segment.
14. Angles formed when two parallel or non-parallel lines are intersected by a transversal. The angles are positioned at the inner corners of the intersections and lie on opposite sides of the transversal angle.
15. straight lines passing through to create an endpoint. It is 2 or more lines.