### Geometry Cross-Word

Loni Martin

2nd period Geometry

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Across
1.Formed by interchanging the hypothesis and the conclusion
3.A polygon such taht no line containing a side of the polygon contains a point in the interior of the polygon.
7.Three sided figure.
9.If two lines are perpendicular, then they form congruent ___ angles.
12.If two lines are cut by a ____ and corresponding angles are congruent, then the lines are parallel.
14.Two lines parallel to a ___ line are parallel to each other.
16.Measure of 90
18.If the _____ sides of two adjacent acute triangles are perpendicular, then the angles are complementary.
20.Two angles whoses measures have the sum of 180.
22.Four sided figure
25.If A = B, then either A or B may be substituted for the other in any equation (or inequality).
26.Thorugh any two points there is exactly ___ line.
29.If ray BX is the bisector of <ABC, then m<ABX = 1/2m<ABC and m<XBC = 1/2m<ABC. (2 Words)
31.If two sides and the included angle of one triangle are congruent to two sides and the included angle of another, then the triangles are congruent
32.Figure formed by two rays that have the same endpoint.
34.Measure between 0 and 90
36.If two lines ___, then they intersect in exactly one point
38.If A=B and C=D, then A+C = B+D
39.The ray that divides the angle into two congruent adjacent angles. (2 Words)
45.Triangle were no sides are congruent.
47.Two angles whos measures have the sum of 90.
48.Through any three points there is at least one plane, and through any three ___ points there is exactly one plane.
50.Two lines that intersect to form right angles. (2 Words)
52.Five sided figure
53.Two angles such that the saides of one angle are opposite rays the the sides of the other angle.
55.If two lines are cut by a transversal and ____ interior angles are supplementary, then the lines are parallel. (2 Words)
56.Means "Many Angles".
Down
2.If A = B and C= D, then A-C = B-D
4.Equally distant
5.A = A
6.If two lines are ___, then they form congruent adjacent angles.
8.Through a line and a point ___ in the line there is exactly one plane.
10.If two angles are supplements of congruent ____ (or of the same angle), then the two angles are congruent.
11.If two points are in a plane, then the line that contains the points is in that plane
13.In a plane two lines perpendicular to the same ___ are parallel.
15.Measure of 180
17.Coplanar lines that never intersect. (2 Words)
19.A line that intersects two or more coplanar lines in different points
20.If a triangle is isosceles, then it is (sometimes, always, never) equilateral.
21.If two ____ intersect, their intersection is a line.
23.Non-coplanar lines that do not intersect. (2 Words)
24.If three sides of one triangle are congruent to three sides of another triangle, then the triangles are congruent
26.Through a point ___ a line, there is exactly one line perpendicular to the given line
27.Two rays that form an angle
28.If M is the midpoint of segment AB then AM = 1/2AB and MB = 1/2AB. (2 Words)
29.Two angles in a plane that have a common vertex and a common side but no comment interior points (2 Words)
30.Angles that have equal measures. (2 Words)
33.If two parallel lines are cut by a transversal, then ____ angles are congruent.
35.Measure between 90 and 190
37.If A = B, then B = A
40.If two ____ lines are cut by a transversal, then corresponding angles are congruent.
41.If two angles are ____ of congruent angles (or of the same angle), then the two angles are congruent.
42.Common endpoint of an angle
43.If two lines for congruent _____ angles, then the lines are perpendicular.
44.Vertical angles are ______
46.Same size and shape
49.if the exterior sides of two adjacent __ angles are perpendicular, then the angles are complementary.
51.If two lines intersect, then ___ one plane contains the lines.
54.If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent

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