Common Core Geometry Unit 2 Net Worth 2026: Salary, Income & Wealth

In this lesson we examine important characteristics about isosceles triangles and use rigid motions to prove these properties.

In this lesson we look at the basic definition of a rotation, introduce the concept of a rigid body motion, and then examine the ...

In this lesson we look at the rigid body motion of translations. We define translations using rays and distances and then explore ...

In this lesson we review the basic notion of a transformation, the four major types of transformations, and some work with ...

In this lesson we learn the technical definition of what makes a transformation symmetry and then analyze the symmetries of ...

In this lesson we look at the fundamental definition of a reflection and then explore the properties of reflections and rigid body ...

This goes over the basic structure of

The reasoning behind rigid motions proofs is explored with relatively simple examples, such as proving that vertical angles are ...

In this lesson we define congruence of

In this lesson we see how the properties of rigid motions can be used to justify that triangles are congruent. These problems lead ...

In this lesson we look at different ways to prove that lines are parallel. We then incorporate these methods into longer proofs ...