Exploring Rigid Transformations in Geometry

The video tutorial introduces key concepts of rigid transformations, including reflection, rotation, and translation. It covers vocabulary such as pre-image, image, and congruence, and explains prime notation. Examples are provided to illustrate how to identify transformations and congruent figures, emphasizing the importance of corresponding parts and notation.

Which of the following is NOT a learning goal for rigid transformations?

• Calculating area of figures

• Understanding prime notation

• Describing transformations using geometric terms

• Identifying types of transformations

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the term for the original figure in a transformation?

• Reflection

• Prime image

• Pre-image

• Image

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CCSS.HSG.CO.A.2

Which symbol represents congruence?

• ≡

• ≈

• ∼

• ≠

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CCSS.8.G.A.2

In a congruent triangle, if triangle ABC is congruent to triangle DEF, which side corresponds to side AB?

• AD

• DF

• DE

• EF

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CCSS.8.G.A.2

Which transformation involves flipping a figure over a line?

• Translation

• Rotation

• Reflection

• Scaling

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the term for moving a figure without rotating or flipping it?

• Translation

• Rotation

• Dilation

• Reflection

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How is a 90-degree counterclockwise rotation described?

• A slide up or down

• A turn to the left

• A turn to the right

• A flip over a line

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What notation is used to indicate the new position of a vertex after a transformation?

• Double letters

• Prime notation

• Subscript notation

• Superscript notation

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If triangle ABC is translated down 9 units and right 4 units, what is the new position of point A?

• A prime

• D prime

• C prime

• B prime

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If WXYZ is congruent to JKLM, which side corresponds to WX?

• JK

• MJ

• LM

• KL

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CCSS.8.G.A.2