chapter 11
definitions
- Acute Angle- An angle that measures greater than 0 degrees and less than 90 degrees.
- Alternate Exterior Angles- For two lines intersected by a transversal, a pair of angles that lie on opposite sides of the transversal and outside the other two lines.
- Alternate Interior Angles- For two lines intersected by a transversal, a pair of nonadjacent angles that lie on opposite sides of the transversal and between the other two lines.
- Angle- A figure formed by two rays with a common endpoint called the vertex.
- Congruent- Having the same size and shape.
- Corresponding Angles- For two lines intersected by a transversal, a pair of angles that lie on the same side of the transversal and on the same sides of the other two lines.
- Exterior Angle- An angle formed by one side of a polygon and the extension of an adjacent side.
- Interior Angle- Angles on the inner sides of two lines cut by a transversal.
- Obtuse Angle- An angle whose measure is greater than 90 degrees but less than 180 degrees.
- Parallel Lines- lines in a plane that do not intersect.
- Remote Interior Angle- An interior angle of a polygon that is not adjacent to the exterior angle.
- Same-Side Interior Angles-A pair of angles on the same side of a transversal and between two lines intersected by the transversal.
- Similar- Figures with the same shape but not necessarily the same size.
- Transversal- A line that intersects two of more lines.
- Vertex- On an angle or polygon, the point where two sides intersect on a polyhedron, the intersection of three or more faces; on a cone or pyramid, the top point.