Geometry

2. when a figure is reflected, translated, or rotated and the figure seems unchanged.
3. a quadrilateral with at least two parallel sides.
4. the side directly across from the right angle in a right triangle.
6. a four-sided polygon.
7. a parallelogram with four congruent sides.
10. location of a point on the x and y-axes.
13. a point in which two lines meet at an end.
15. the ratio of vertical change to horizontal change.
17. existing on the same plane.
18. line cutting across a pair of parallel lines.
19. the meeting point of the three medians in a triangle.

1. two lines intersecting and creating a 90 degree angle.
5. the sum of all of the side lengths of a shape.
8. the exact halfway point between two endpoints.
9. a branch of mathematics that deals with points, lines, planes, and solids and examines their properties.
11. measuring more than 90 degrees.
12. a closed figure with 6 sides.
14. segment whose endpoints are the center of the circle and a point on the circle.
15. a quadrilateral where all sides are equal and all angles are 90 degrees.
16. a position in space.