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# Unit: Unit 1: Rigid transformations and congruence

#### 0

Possible mastery points

## Lesson 3: Grid moves

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No videos or articles available in this lesson
Practice
Rotate points (basic)Get 3 of 4 questions to level up!

## Lesson 5: Coordinate moves

Practice
Translate pointsGet 3 of 4 questions to level up!
Translate shapesGet 3 of 4 questions to level up!
Reflect pointsGet 3 of 4 questions to level up!
Reflect shapesGet 3 of 4 questions to level up!

## Lesson 6: Describing transformations

Practice
Determine translationsGet 3 of 4 questions to level up!
Determine rotations (basic)Get 3 of 4 questions to level up!
Determine reflectionsGet 3 of 4 questions to level up!
Mapping shapesGet 3 of 4 questions to level up!

#### Quiz 1

Level up on the above skills and collect up to 900 Mastery points

## Extra practice: Transformations

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No videos or articles available in this lesson
Practice
Rigid transformations: preserved propertiesGet 3 of 4 questions to level up!

#### Quiz 2

Level up on the above skills and collect up to 200 Mastery points

## Lesson 12: Congruent polygons

Practice
Congruence & transformationsGet 3 of 4 questions to level up!

## Lesson 14: Alternate interior angles

Practice
Angle relationships with parallel linesGet 5 of 7 questions to level up!

## Lesson 15: Adding the angles in a triangle

Practice
Find angles in trianglesGet 5 of 7 questions to level up!
Find angles in isosceles trianglesGet 3 of 4 questions to level up!

## Lesson 16: Parallel lines and the angles in a triangle

#### Quiz 3

Level up on the above skills and collect up to 500 Mastery points
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 1600 Mastery points!