# Shared Flashcard Set

## Details

geometry
morphew chapter 4
24
Mathematics
11/04/2008

Term
 Acute triangle
Definition
 A triangle with three angles measuring less than 90 degrees.
Term
 Base
Definition
 In an isosceles triangle, it is the side opposite the vertex angle
Term
 Congruence transformation
Definition
 When a geometric figure and its transformation image are congruent such as a slide , rotation or flip
Term
 Congruent triangles
Definition
 Triangles that have their corresponding parts congruent
Term
 Corollary
Definition
 A statement that can be easily proven using a theorem.
Term
 Equiangular triangles
Definition
 Triangles with all three angles congruent
Term
 Equilateral triangles
Definition
 Triangles with all three sides congruent
Term
 Exterior angle
Definition
 An angle that forms a linear pair with one of the angles of a polygon
Term
 Included side
Definition
 In a triangle, the side between two angles
Term
 Polygon
Definition
 A closed figure in a plane that is made up of segments that intersect only at their endpoints.
Term
 Vertices
Definition
 The name of the endpoints of a triangle.
Term
 Auxillary lines
Definition
 A line of line segment added to a given figure to help in proving a result.
Term
 Base angles
Definition
 In an isosceles triengle, they are the angles opposite the congruent sides.
Term
 Included angle
Definition
 In a triangle, the angle formed by two sides
Term
 Isosceles triangle
Definition
 A triangle with at least two sides congruent
Term
 Legs
Definition
 The two congruent sides of an isosceles triangle.
Term
 Obtuse triangle
Definition
 A triangle with one angle greater than 90 degrees
Term
 Remote interior angles
Definition
 The angles of a triangle that are not adjacent to a given exterior angle
Term
 Right triangle
Definition
 A triangle with one angle measuring exactly 90 degrees
Term
 Scalene triangle
Definition
 A triangle with no two sides congruent
Term
 Sides
Definition
 The name of the segments that form a triangle
Term
 Triangle
Definition
 A figure formed by the segment determined by three noncollinear points.
Term
 Triangle
Definition
 A figure formed by the segment determined by three noncollinear points.
Term
 Vertex angle
Definition
 In an isosceles triangle, the angle formed by the congruent sides
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