Across
- 1. A figure that has one endpoint and extends infinitely in one direction. Two of these form an angle
- 4. An undefined term, this doesn’t have any dimensions and is the building block for everything else in geometry
- 6. An undefined term that has one dimension and extends infinitely in both directions.
- 8. An angle that has a measure of exactly 90°
- 11. A pair of non coplanar that do not intersect. They may or may not have the same slope.
- 14. A pair of lines that form right angles when they intersect.
- 17. A variation of the conditional statement, where the hypothesis and conclusion are switched. It can be represented as q→p
- 18. An angle that has a measure of 180°. Technically, it would also be a line.
- 19. A term that doesn’t have a clear definition in math. However, we know what these are based on our prior knowledge. Other terms are based on these
- 21. A variation of the conditional statement. The hypothesis and conclusion are negated. It can be represented as ¬p→¬q
- 23. A pair of adjacent or non adjacent angles whose measures add up to 90°
- 25. A type of triangle congruence theorem where if two sides and an included angle is congruent to another corresponding two sides and included angle of a second triangle, then the triangles are congruent.
- 26. A fact that can be easily proved after a theorem is proven
- 27. Lines that are in the same position and plane. They have an infinite amount of intersection points.
- 29. An angle that has a measure less than 90°
- 30. An undefined term that has two dimensions. It looks very similar to the walls and floors of our classroom and extends infinitely in all directions
- 31. An angle that has a measure of more than 90°, but less than 180°
- 33. A pair of coplanar lines that never intersect. They also have the same slope.
- 34. A pair of adjacent or non adjacent angles whose measures add up to 180°
- 36. A type of reasoning where you use patterns to determine what will happen.
- 37. A fact or statement that is simply accepted as true
Down
- 2. A type of angle pair formed by a transversal. The angles lie on alternate sides of the exterior of the transversal
- 3. A statement written in the form if-then, with a hypothesis and conclusion, like if hypothesis, then conclusion. It can also be represented as p→q, where p is the hypothesis and q is the conclusion.
- 5. A table used to determine whether a conditional statement is true or not.
- 7. A type of reasoning where you use facts and logic to determine what will happen
- 9. When two angles and an included side of a triangle are congruent to another corresponding two angles and an included side of a second triangle, this theorem is used to prove that the two triangles are congruent
- 10. A process that is used to make a geometric figure using only a compass and ruler/straightedge.
- 12. A pair of adjacent angles whose measures add up to 180°.
- 13. A fact about a term. Unlike others, they are directly related to the terms.
- 15. An abbreviation for the fact that corresponding parts of congruent triangles are congruent.
- 16. An invalid way of proving that two triangles are congruent. However, for right triangles, you can use another version of this for HL congruence
- 20. A line that intersects a pair of lines.
- 22. A type of angle pair formed by a transversal. The angles lie on alternate sides of the interior of the transversal
- 24. A type of angle pair formed by a transversal. They are in corresponding positions of the transversal
- 28. A fact that can be proved by using postulates, other theorems, definitions, and more!
- 29. When two angles and a non included side of a triangle are congruent to another corresponding two angles and a non included side of a second triangle, this theorem is used to prove that the two triangles are congruent.
- 32. A variation of the conditional statement, where the hypothesis and conclusion are switched and negated. It can be represented as ¬q→¬p
- 35. When two rays share a common endpoint, they form this term
- 38. A type of triangle congruence theorem that is used when all three sides of a triangle are congruent to 3 corresponding sides of a second triangle