Understanding Geometric Transformations

What are the four main types of transformations in geometry?

• Shift, Turn, Mirror, Expand

• Moving, Spinning, Flipping, Growing

• Scaling, Shifting, Turning, Mirroring

• Translation, Rotation, Reflection, Enlargement

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CCSS.8.G.A.3

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What does it mean to translate a shape?

• To change its size

• To reflect it across a line

• To rotate it around a point

• To move it from one position to another

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CCSS.8.G.A.3

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How is a translation of a shape described?

• By the angle and direction

• By the scale factor

• By the line of reflection

• By the horizontal and vertical changes

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In a translation, what does the vector (3, -2) indicate?

• The shape reflects over the x-axis

• The shape enlarges by a factor of 3

• The shape moves 3 units right and 2 units down

• The shape rotates 3 degrees clockwise

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CCSS.8.G.A.3

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What information is required to fully describe a translation?

• The horizontal and vertical distances moved

• The angle and center of rotation

• The equation of the line of reflection

• The scale factor and center of enlargement

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CCSS.8.G.A.3

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What is necessary to describe a rotation in geometry?

• Units moved left and right

• Angle, direction, and center of rotation

• Line of reflection

• Scale factor and center

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CCSS.8.G.A.3

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Which tool can help in finding the center of rotation?

• Ruler

• Protractor

• Compass

• Tracing paper

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CCSS.8.G.A.3

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What is the center of rotation?

• The direction in which the shape moves

• The point around which the shape rotates

• The line across which the shape is mirrored

• The point where the shape grows

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CCSS.8.G.A.3

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Which transformations do not change the size of a shape?

• Translation

• Enlargement

• Rotation

• All of the above

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CCSS.8.G.A.3

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How is the line of reflection used in describing a shape's reflection?

• It indicates the scale of enlargement

• It shows the direction of translation

• It acts as a mirror where each vertex matches

• It determines the angle of rotation

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CCSS.8.G.A.3

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