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Across
4.a line segment of a triangle that joins a vertex to the midpoint of the opposite side
5.a number with a square root symbol
6.a quadrilateral with only one pair of parallel sides
8.a triangle with two congruent sides
10.a tool used to measure angles
11.the level of the viewer's eyes as the viewer looks across a distance in a drawing
14.a special quadrilateral with both pairs of opposite sides parallel
15.a line that bisects a line segment and is perpendicular to the line segment
16.a triangle with all sides congruent
17.two angles that have a common vertex and a common ray
19.a pair of angles whose measures have a sum of 180 degrees
22.an angle that is equal to 90 degrees
23.interior angles that are on opposite sides of a transversal
27.interior angles that are on the same side of the transversal
29.a closed geometric figure made up of at least three line segments or sides
30.the point where the three medians of a triangle meet
32.a line segment of a triangle that joins a vertex to the line containing the opposite side and that is perpendicular to that side
33.an interior angle of a triangle not adjacent to the given exterior angles
34.a triangle with all angles equal
35.a pair of angles whose measures have a sum of 90 degrees
37.a geometric figure made up of infinitely many points; it extends endlessly in two directions
39.a line that intersects two different lines at two different points
43.each of the sides that form the right angle of a right triangle
44.angles that have the same measure
45.a parallelogram with four right angles and four congruent sides
46.a statement that is accepted without proof
47.the side opposite the right angle of a right triangle
48.a triangle with three acute angles
51.a part of a line; it has two endpoints
53.a parallelogram with four right angles
54.the number that was squared
55.a polygon that has all congruent sides and all congruent angles
56.a part of a line; it has one endpoint and extends endlessly in one direction
57.a triangle with no congruent sides
58.a ray that divides an angle into two congruent angles
Down
1.a line segment that connects one vertex to an opposite vertex
2.a line that intersects a line segment at its midpoint
3.a flat surface; it has no thickness
4.the point that divides a line segment into two congruent parts
7.a formula for finding the length of a side of a right triangle when you know the lengths of the other sides
9.line segments that have the same length
12.a way to draw real objects on a flat surface as they appear in real life
13.a location in space
18.the angle formed by extending one side of a triangle
20.two lines that intersect to form a right angle
21.a line segment that joins the midpoints of two sides of a triangle
24.a statement that can be proved
25.a triangle with one right angle
26.a parallelogram with four congruent sides
27.an angle that is equal to 180 degrees
28.angles formed by intersecting lines
31.points on the same line
36.angles on the same side of a transversal; one is an interior angle and one is an exterior angle
38.an angle that is greater than 90 degrees but less than 180 degrees
40.an angle that is greater than 0 degrees and less than 90 degrees
41.a triangle with one obtuse angle
42.a point on the horizon where parallel lines appear to meet
49.a geometric figure formed by two rays with a common endpoint
50.lines that lie in the same plane and do not intersect
52.the product of multiplying a number by itself

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