## MA.8.GR.2.4 - Solve mathematical and real-world problems involving proportional relationships between similar triangles.

### Displaying 1 - 50 of 158 resources:

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### 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.

Geometric Constructions with Points and Lines, Parallel Lines and Perpendicular Lines

Definition of an Angle

### Definition--Geometry Basics--Altitude

Altitude

Geometric Constructions with Points and Lines

### Definition--Geometry Basics--Antiprism

Antiprism

3-Dimensional Figures

### Definition--Geometry Basics--Axis

Axis

Exploring Coordinate Systems

### Definition--Geometry Basics--Base

Base

Definition of a Triangle

### Definition--Geometry Basics--Biconditional Statement

Biconditional Statement

Definition of a Point

### Definition--Geometry Basics--Central Angle

Central Angle

Definition of a Circle

### Definition--Geometry Basics--Circle Inscribed In a Triangle

Circle Inscribed In a Triangle

Definition of a Circle

### Definition--Geometry Basics--Circumcenter of a Triangle

Circumcenter of a Triangle

Definition of a Circle

### Definition--Geometry Basics--Circumference

Circumference

Definition of a Circle

### Definition--Geometry Basics--Conditional Statement

Conditional Statement

Definition of a Point

### Definition--Geometry Basics--Congruence

Congruence

Definition of Transformations

### Definition--Geometry Basics--Conjecture

Conjecture

Definition of a Point

### Definition--Geometry Basics--Contrapositive Statement

Contrapositive Statement

Definition of a Point

### Definition--Geometry Basics--Converse of a Conditional Statement

Converse of a Conditional Statement

Definition of a Point

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

Corresponding Angles

Definition of an Angle

### Definition--Geometry Basics--Corresponding Sides

Corresponding Sides

Definition of an Angle

### Definition--Geometry Basics--Diameter

Diameter

Definition of a Circle

### Definition--Geometry Basics--Distance Formula

Distance Formula

The Distance Formula

### Definition--Geometry Basics--Geometry

Geometry

Definition of a Point

### Definition--Geometry Basics--Hexagon

Hexagon

Definition of a Polygon

### Definition--Geometry Basics--Incenter of a Triangle

Incenter of a Triangle

Definition of a Circle

### Definition--Geometry Basics--Inscribed Angle

Inscribed Angle

Definition of a Circle

### Definition--Geometry Basics--Inscribed Square

Inscribed Square

Definition of a Circle

### Definition--Geometry Basics--Inscribed Triangle

Inscribed Triangle

Definition of a Circle

### Definition--Geometry Basics--Intersecting Planes

Intersecting Planes

Definition of a Plane

### Definition--Geometry Basics--Inverse Statement

Inverse Statement

Definition of a Point

### Definition--Geometry Basics--Line

Line

Definition of a Line

### Definition--Geometry Basics--Line Segment

Line Segment

Definition of a Line

### Definition--Geometry Basics--Midpoint

Midpoint

Definition of a Point

Midpoint Formula

Midpoint Formula

### Definition--Geometry Basics--Nonagon

Nonagon

Applications of Polygons

### Definition--Geometry Basics--Parallel Lines

Parallel Lines

Definition of a Line

### Definition--Geometry Basics--Parallel Planes

Parallel Planes

Definition of a Plane

### Definition--Geometry Basics--Pentagon

Pentagon

Definition of a Polygon

### Definition--Geometry Basics--Perimeter

Perimeter

Area and Perimeter of Triangles and Area and Perimeter of Quadrilaterals

### Definition--Geometry Basics--Perpendicular Bisector

Perpendicular Bisector

Definition of a Line

### Definition--Geometry Basics--Perpendicular Lines

Perpendicular Lines

Definition of a Line

### Definition--Geometry Basics--Perpendicular Planes

Perpendicular Planes

Definition of a Plane

### Definition--Geometry Basics--Plane

Plane

Definition of a Plane

### Definition--Geometry Basics--Point

Point

Definition of a Point

### Definition--Geometry Basics--Polygon

Polygon

Definition of a Polygon

### Definition--Geometry Basics--Prism

Prism

3-Dimensional Figures

Pyramid

Pyramids

### Definition--Geometry Basics--Pythagorean Identity 1

Pythagorean Identity 1

Trig Expressions and Identities

### Definition--Geometry Basics--Pythagorean Identity 2

Pythagorean Identity 2

Trig Expressions and Identities

### Definition--Geometry Basics--Pythagorean Identity 3

Pythagorean Identity 3

Trig Expressions and Identities

### Definition--Geometry Basics--Pythagorean Theorem

Pythagorean Theorem

Right Triangles