Across
- 4. Two angles whose sum is 90 degrees.
- 5. Having the same size, shape and measure. Two figures are congruent if all of their corresponding measures are equal.
- 9. Two lines are perpendicular if they intersect at a right angle.
- 10. A ray or segment divides a segment or angle into two equal parts.
- 12. The point at which two or more lines intersect or cross.
- 14. Pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on the same side of the transversal and are between the other two lines. When the two other lines are parallel, same-side interior angles are supplementary.
- 17. Two angles whose sum is 180 degrees.
- 18. Sides that have the same relative positions in geometric figures
- 21. A transformation that "slides" each point of a figure the same distance in the same direction
- 22. A transformation that "flips" a figure over a line of reflection
- 24. Created by two distinct rays that share a common endpoint (also known as a vertex). ∠ABC or ∠B denote angles with vertex B.
- 25. Comparison of two quantities by division and may be written as r/s, r:s, or r to s.
- 26. Transformation that changes the size of a figure, but not the shape.
- 27. The ratio of any two corresponding lengths of the sides of two similar
Down
- 1. An equation which states that two ratios are equal.
- 2. One of the basic undefined terms of geometry. Traditionally thought of as a set of points that has no thickness but its length goes on forever in two opposite directions. AB denotes a line that passes through point A and B.
- 3. Pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on opposite sides of the transversal and are in between the other two lines. When the two other lines are parallel, the alternate interior angles are equal.
- 4. Angles that have the same relative positions in geometric
- 6. The part of a line between two points on the line. AB denotes a line segment between the points A and B.
- 7. Pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on opposite sides of the transversal and are outside the other two lines. When the two other lines are parallel, the alternate exterior angles are equal.
- 8. The mapping, or movement, of all the points of a figure in a plane according to a common operation.
- 11. two non adjacent angles formed by intersecting lines or segments. Also called opposite angles.
- 13. The points at an end of a line segment
- 14. Pairs of angles formed when a third line (a transversal) crosses two other lines. These angles are on the same side of the transversal and are outside the other two lines. When the two other lines are parallel, same-side exterior angles are supplementary.
- 15. Adjacent, supplementary angles. Excluding their common side, a linear pair forms a straight line.
- 16. Figures that have the same shape but not necessarily the same size.
- 19. A transformation that turns a figure about a fixed point through a given angle and a given direction.
- 20. Lines: Two lines are parallel if they lie in the same plane and they do not intersect.
- 23. A line that crosses two or more lines.