Determining Congruent Figures Through Transformations

The video tutorial explains how to determine if two figures are congruent using transformations. It covers the concept of congruence through rigid motions such as translation, rotation, and reflection. The tutorial provides examples of congruence in quadrilaterals and pentagons, demonstrating how to map one figure onto another using these transformations. The video concludes with a challenge for students to apply these concepts independently.

What is the fundamental principle for determining if two figures are congruent?

• If they are both polygons

• If they can be mapped onto each other using a sequence of rigid motions

• If they have the same color

• If they have the same area

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CCSS.HSG.CO.B.6

What does a rigid motion involve?

• Changing the shape of a figure

• Altering the size of a figure

• Rotating a figure to change its orientation

• Moving a figure without altering its shape or size

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CCSS.HSG.CO.A.2

What transformation maps quadrilateral QRST onto quadrilateral UVWX?

• Rotation of 90 degrees clockwise

• Reflection over the y-axis

• Translation six units right and three units down

• Scaling up by a factor of 2

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CCSS.8.G.A.2

How can you verify if two quadrilaterals are congruent?

• By checking if one can be mapped onto the other through rigid motions

• By comparing their colors

• By measuring their perimeters

• By counting the number of sides

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CCSS.HSG.CO.A.2

Why is it important to be specific about the transformation used?

• To increase the figures' sizes

• To change the figures' colors

• To make the figures look nicer

• To ensure accurate mapping between figures

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the result of rotating the yellow quadrilateral 90 degrees clockwise?

• It remains unchanged

• It becomes larger in size

• It maps onto the blue quadrilateral

• It changes color

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the purpose of rotating a figure during a transformation?

• To change its shape

• To increase its size

• To change its color

• To align it with another figure

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which axis do you reflect over to map the blue pentagon onto the purple pentagon?

• X-axis

• Z-axis

• It does not require reflection

• Y-axis

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CCSS.8.G.A.3

What indicates the need for a reflection in a transformation sequence?

• A shift in position

• A reversal of orientation

• A change in color

• A change in size

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

What sequence of transformations maps triangle ABC onto triangle ZYX?

• Rotation of 90 degrees clockwise followed by reflection over the y-axis

• Rotation of 90 degrees clockwise followed by reflection over the x-axis

• Reflection over the x-axis followed by rotation of 90 degrees clockwise

• Translation to the right and then scaling down

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6