Across
- 1. This term is a polygon that is equilateral, which has all congruent sides. This term is also equiangular, which has all congruent angles.
- 5. These type of angles are two wo coplanar angles with a common side, and a common vertex. Although these theses do not have common interior points.
- 6. This is an angle whose vertex is a point on the circle. The sides of this angle also contain chords.
- 9. This is a point or line that intersects a segment at its midpoint. It can also be a ray or segment.
- 14. These angles are between the two lines and are on the same side of the transversal. These are also known as consecutive interior angles.
- 15. This is a straight line or plane that touches a curve or curved surface at a point. Although, if extended does not cross it at that point.
- 16. This is a quadrilateral only has 1 pair of parallel. This is also a quadrilateral with two congruent legs.
- 19. A triangle in which all three sides are equal. This triangle also has all equal angles, each being 60°.
- 20. This part of a circle is a segment that contains the center og the center and whose endpoints are on the circle. The term can also mean the length of this segment.
Down
- 2. These angles are angles that lie outside of the two lines. These angles are also on opposite sides of the transversal.
- 3. A triangle that has two sides of equal length. This angle also has two congruent angles.
- 4. These angles are angles that lie between the two lines. These angles are also on opposite sides of the transversal.
- 7. A figure has this if there is an isometry that maps the figure onto itself. A few examples that have this would be a square, rectangle, and an isosceles trapezoid.
- 8. This type of point divides a segment into two segments. When the segments are divided, they end up up being congruent to each other.
- 10. This term is a part of the circle that is any segment with one endpoint on a circle and the other endpoint at the center of a circle. This term can also mean the length of this segment.
- 11. These types of angles when put together make a sum of 90°. For example, this term can be used to describe the angles of 22° and 68°.
- 12. These types of angles when put together make a sum of 180°. For example, this term can be used to describe the angles of 157° and 23°.
- 13. This term is a polygon with all angles congruent. An example of this term would be a square.
- 17. This term is a segment from the vertex of a triangle to the opposite side. This segment must be perpendicular to the segment of the opposite side.
- 18. This term is the ratio of the hypotenuse to the shorter side adjacent to an acute angle (in a right-angled triangle). This term is also the reciprocal of a cosine.