Geometry Crossword

1. Points A, B, C lie on the same plane; what type of points are they?
4. A flat surface of two dimensions
5. A quadrilateral that has 2 pairs of equal-length sides and these sides are adjacent to each other
7. A part of the line having one fixed point and the other point does not have an end
8. theorem Theorem that the sum of any two sides of a triangle is greater than or equal to the third side; (a + b ≥ c)
10. What is the name for two angles with the sum of 90º?
12. An opinion or conclusion formed on the basis of incomplete information
13. 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?
15. A general proposition proved by a chain of reasoning and truths
17. An angle that is equal to 180 degrees
18. ~p → ~q
19. When two lines intersect each other, then the angles opposite to each other are called?
20. Has two pairs of opposite sides that are parallel and equal.

2. If m∠A=84º and m∠B=96º, then these two angles are what type of angles?
3. The theorem that the sum of the exterior angles of a polygon is 360°
6. d=√((x_2-x_1)²+(y_2-y_1)²)
9. The point where three bisectors of the interior angles of a triangle intersect
11. A triangle in which all three sides are in different lengths
14. Generally another word for the height of a triangle
16. Trapezoid with right angles.