Unit 1 Rigid Transformations and Congruence mid-unit quiz

1. Lines CE and AD intersect at B.

What is the measure of angle DBE?

• 37^o

• 53⁰

• 127⁰

• 143⁰

Tags

CCSS.8.G.A.5

Select all the sequences of transformations that could take Figure P to Figure Q.

• a single reflection

• a single rotation

• a single translation

• a translation, then a reflection

• a reflection, then a different reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

In which pair of figures can Figure A be taken to Figure B by a rotation?​

• Pair 1

• Pair 2

• Pair 3

• Pair 4

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Here are three pairs of figures.

Which transformation takes Figure A to Figure B in Pair 1: a translation, rotation, or reflection?

• translation

• rotation

• reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Here are three pairs of figures.

Which transformation takes Figure A to Figure B in Pair 2: a translation, rotation, or reflection?

• translation

• rotation

• reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Here are three pairs of figures.

Which transformation takes Figure A to Figure B in Pair 3: a translation, rotation, or reflection?

• translation

• rotation

• reflection

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Why is Figure B is not the image of Figure A after a rotation using center P.

• You must reflect and rotate the image in order to get the pairs to their corresponding parts.

• The shortest side of Figure B is shorter than the shortest side of Figure A. Since rotations do not change lengths, Figure B is not a rotation of Figure A.

• The sides are all equal but you can not rotate the image because it is a reflection.

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

1. Explain why Figure B is not the image of Figure A after a reflection using line "L".

• The image shows a reflection and rigid transformation from Figure A to Figure B.

• The image is not a reflection because Figure A and Figure B are different distances from the line of reflection. In order to be a reflection both images must be the same distance apart.

• The angles in Figure B do not match the corresponding angles in Figure A. Some of the angles in Figure A look like right angles while some corresponding angles in Figure B are definitely not right angles.

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

Point A is located at coordinates (-4,3).

Point B is the image of A after a 180^o using (0,0) as center.

What are the coordinates of B?

• (-4,3)

• (4,3)

• (4,-3)

• (-4,-3)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Point A is located at coordinates (-4,3).

Point C is the image of A after a translation two units to the right then a reflection using the x-axis.

What are the coordinates of C?

• (-2,-3)

• (2,3)

• (-6,-3)

• (6,3)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3