enCR20
Parallel Lines: The same distance apart at any given point
Angle: The space within two lines or three or more planes diverging from a common point, or within two planes diverging from a common line.
Plane: A surface generated by a straight line moving at a constant velocity with respect to a fixed point.
Complementary Angles: Either of two angles whose sum is 90°.
Supplementary Angles: Either of two angles whose sum is 180°.
Vertex: A point where two or more straight lines meet.
Triangle: A three-sided polygon.
Intersection: Point where two or more lines meet.
Rotation: A full rotation of 360°.
Line of Symmetry: A line that divides a figure into two congruent parts.
Alternate Interior Angles: Two congruent interior angles that lie on different parallel lines and on opposite sides of a transversal.
Alternate Exterior Angles: Two pairs of angles on opposite sides of the transversal and outside the parallel.
Hypotenuse: The longest side of a right triangle, opposite the right angle.
Obtuse:An angle between 90 and 180 degrees.
Acute: An angle less than 90 degrees but more than 0 degrees.
Right: An angle of 90°, as in a corner of a square.
Interior Angles: The angle between adjacent sides of a rectilinear figure.
Transversal: A line intersecting two or more lines.
Congruent Figures: Figures that have the same shape and size.
Exterior Angles: Angle between a side of a rectilinear figure and an adjacent side extended outward.
Linear Pair: Two supplementary adjacent angles formed by two intersecting lines.
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Across:
1.
A line that divides a figure into two congruent parts.
8.
Two pairs of angles on opposite sides of the transversal and outside the parallel.
9.
The space within two lines or three or more planes diverging from a common point, or within two planes diverging from a common line.
10.
The longest side of a right triangle, opposite the right angle.
14.
A surface generated by a straight line moving at a constant velocity with respect to a fixed point.
15.
An angle of 90°, as in a corner of a square.
16.
Point where two or more lines meet.
18.
Either of two angles whose sum is 90°.
19.
Angle between a side of a rectilinear figure and an adjacent side extended outward.
20.
Two supplementary adjacent angles formed by two intersecting lines.
Down:
2.
Either of two angles whose sum is 180°.
3.
A full rotation of 360°.
4.
A line intersecting two or more lines.
5.
The angle between adjacent sides of a rectilinear figure.
6.
A three-sided polygon.
7.
Two congruent interior angles that lie on different parallel lines and on opposite sides of a transversal.
11.
The same distance apart at any given point
12.
A point where two or more straight lines meet.
13.
An angle between 90 and 180 degrees.
17.
An angle less than 90 degrees but more than 0 degrees.