Title  Description  Thumbnail Image 

DefinitionTriangle ConceptsTriangle Altitude 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsCongruent Triangles 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsSimilar Triangles 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsCentroid of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsOrthocenter of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsIncenter of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsInscribed Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsCircle Inscribed In a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsTriangle, Definition 1 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsTriangle, Definition 2 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsIsosceles Triangle, Definition 2 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsInterior Angles of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsTriangle Inscribed in a Circle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsVertex of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsBase of a Triangle 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

DefinitionTriangle ConceptsTriangle Height 
This is a collection of definitions related to triangles and related concepts. This includes general definitions for triangles and triangle properties, as well as specific triangle types. Relationships among different types of triangles are also defined. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Definitions on this topic, click on this Link. 

Collections in a Box: Parallel and Perpendicular Lines 
This cheat sheet gathers together the resources on the topic of parallel and perpendicular lines. See the descriptions and links below. Each link takes you to a collection of resources around that topic. The middle column indicates the number of resources available and the third column takes you to page on Media4Math where those resources can be found. Subscribers can download the PDF version of this cheat sheet. Click Preview to see the HTML version. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 07 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 08 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 09 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 10 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 01 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 02 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 03 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 

Math Example: Equations with Angles from Parallel Lines Cut by a TransversalExample 04 
This set of math examples shows how to solve equations for an unknown angle based on parallel lines cut by a transversal. Examples use properties of these lines, including alternate interior angles, alternate exterior angles, corresponding angles, vertical angles, supplementary angles, same side interior angles, and same side exterior angles. Note: The download is a PNG file. Related ResourcesTo see the complete collection of Math Examples on this topic, click on this Link. 