Geometry Crossword

2. angles. If m∠A=84º and m∠B=96º, then these two angles are what type of angles?
3. From "If it rains, then they cancel school" to "If they do not cancel school, then it does not rain." What conditional statement is this?
5. A flat surface of two dimensions
7. An opinion or conclusion formed on the basis of incomplete information
8. Has two pairs of opposite sides that are parallel and equal.
10. Generally another word for the height of a triangle
13. A quadrilateral that has 2 pairs of equal-length sides and these sides are adjacent to each other
14. A part of the line having one fixed point and the other point does not have an end
17. angles. What is the name for two angles with the sum of 90º?
19. angles. When two lines intersect each other, then the angles opposite to each other are called?

1. formula. d=√((x_2-x_1)²+(y_2-y_1)²)
2. triangle. A triangle in which all three sides are in different lengths
4. The point where three bisectors of the interior angles of a triangle intersect
6. ~p → ~q
9. trapezoid. Trapezoid with right angles.
11. inequality theorem. Theorem that the sum of any two sides of a triangle is greater than or equal to the third side; (a + b ≥ c)
12. exterior angle sum. The theorem that the sum of the exterior angles of a polygon is 360°
15. angle. An angle that is equal to 180 degrees
16. points. Points A, B, C lie on the same plane; what type of points are they?
18. A general proposition proved by a chain of reasoning and truths