## G.GSR.4.5 - Use geometric reasoning to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

### Displaying 1 - 50 of 90 resources:

Thumbnail Image Title Description Curriculum Nodes

### Math Clip Art Collection: Geometry Basics: Classifying Triangles by Angle

This collection aggregates all the math clip art around the topic of Classifying Triangles by Angle. There are a total of 11 images. Definition of a Triangle

### Math Clip Art Collection: Geometry Basics: Classifying Triangles by Sides

This collection aggregates all the math clip art around the topic of Classifying Triangles by Sides. There are a total of 16 images. Definition of a Triangle

### Math Clip Art Collection: Parallel Lines Cut by a Transversal

This collection aggregates all the math clip art around the topic of Parallel Lines Cut by a Transversal. There are a total of 16 images. Parallel Lines

### Math Clip Art Collection: Points, Lines, Segments, and Rays

This collection aggregates all the math clip art around the topic of Points, Lines, Segments, and Rays. There are a total of 18 images. Applications of Points and Lines, Parallel Lines, Perpendicular Lines, Applications of Coordinate Geometry and Coordinate Systems

### Math Definitions Collection: Geometry

This collection aggregates all the definition image cards around the topic of Geometry vocabulary. There are a total of 58 terms. 3-Dimensional Figures, Definition of an Angle, Exploring Coordinate Systems, Geometric Constructions with Points and Lines, Definition of a Point, Definition of a Triangle, Definition of a Circle, Definition of Transformations, The Distance Formula, Definition of a Polygon, Definition of a Plane, Definition of a Line, Midpoint Formula, Applications of Polygons, Right Triangles, Trig Expressions and Identities, Definition of a Quadrilateral, Applications of Points and Lines, Proportions, Area and Perimeter of Triangles, Area and Perimeter of Quadrilaterals and Pyramids

### Math Definitions Collection: Triangles

This collection aggregates all the definition image cards around the topic of Triangles terms and  vocabulary. There are a total of 33 terms. Definition of a Triangle

This collection of clip art images includes image sequences for key topics in geometry.

Definition of an Angle

### Definition--Geometry Basics--Corresponding Angles

Definition--Geometry Basics--Corresponding Angles

This collection of clip art images includes image sequences for key topics in geometry.

Definition of an Angle

### Definition--Geometry Basics--Similarity

Definition--Geometry Basics--Similarity

This collection of clip art images includes image sequences for key topics in geometry.

Proportions

### Definition--Triangle Concepts--3-4-5 Right Triangle

Definition--Triangle Concepts--3-4-5 Right Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--30-60-90 Right Triangles

Definition--Triangle Concepts--30-60-90 Right Triangles

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--45-45-90 Right Triangles

Definition--Triangle Concepts--45-45-90 Right Triangles

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--5-12-13 Right Triangle

Definition--Triangle Concepts--5-12-13 Right Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Acute Triangle

Definition--Triangle Concepts--Acute Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Area of a Triangle

Definition--Triangle Concepts--Area of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Base of a Triangle

Definition--Triangle Concepts--Base of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Centroid of a Triangle

Definition--Triangle Concepts--Centroid of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Circle Inscribed In a Triangle

Definition--Triangle Concepts--Circle Inscribed In a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Circumcenter of a Triangle

Definition--Triangle Concepts--Circumcenter of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Congruent Triangles

Definition--Triangle Concepts--Congruent Triangles

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Equilateral Triangle

Definition--Triangle Concepts--Equilateral Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Hypotenuse

Definition--Triangle Concepts--Hypotenuse

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Incenter of a Triangle

Definition--Triangle Concepts--Incenter of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Inscribed Triangle

Definition--Triangle Concepts--Inscribed Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Interior Angles of a Triangle

Definition--Triangle Concepts--Interior Angles of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Isosceles Triangle, 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. Definition of a Triangle

### Definition--Triangle Concepts--Isosceles 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. Definition of a Triangle

### Definition--Triangle Concepts--Legs of a Right Triangle

Definition--Triangle Concepts--Legs of a Right Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Medians of a Triangle

Definition--Triangle Concepts--Medians of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Obtuse Triangle

Definition--Triangle Concepts--Obtuse Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Orthocenter of a Triangle

Definition--Triangle Concepts--Orthocenter of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Perimeter of a Triangle

Definition of a Triangle

### Definition--Triangle Concepts--Pythagorean Triples

Definition--Triangle Concepts--Pythagorean Triples

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Right Triangle

Definition--Triangle Concepts--Right Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Scalene Triangle

Definition--Triangle Concepts--Scalene Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Similar Triangles

Definition--Triangle Concepts--Similar Triangles

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Triangle Altitude

Definition--Triangle Concepts--Triangle Altitude

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Triangle Height

Definition--Triangle Concepts--Triangle Height

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Triangle Inscribed in a Circle

Definition--Triangle Concepts--Triangle Inscribed in a Circle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Definition--Triangle Concepts--Triangle, Definition 1

Definition of a Triangle

### Definition--Triangle Concepts--Triangle, Definition 2

What Is a Triangle?

This is part of a collection of definitions on the topic of Triangles. Each definition is a downloadable image.

Definition of a Triangle

### Definition--Triangle Concepts--Vertex of a Triangle

Definition--Triangle Concepts--Vertex of a Triangle

This is part of a collection of definitions related to triangles and related concepts.

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 01

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 01

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 02

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 02

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 03

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 03

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 04

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 04

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 05

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 05

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 06

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 06

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 07

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 07

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle

### Math Clip Art--Geometry Basics--Classifying Triangles by Angles 08

Math Clip Art--Geometry Basics--Classifying Triangles by Angles 08

This collection of clip art images includes image sequences for key topics in geometry This includes points, lines, planes, angles, triangles

Definition of a Triangle