Unit Pre-Test: Congruency/Intro to Proofs

Find K' if the figure is reflected across the x-axis

• (4, 1))
• (-1, -4)
• (1, -4)
• (1, 4)

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.5

CCSS.HSG.CO.A.4

CCSS.HSG.CO.A.3

∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

• S' (-3, 7)

• S' (3, 7)

• S' (-3, -7)

• S' (0,0)

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.5

CCSS.HSG.CO.A.4

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Transformation

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.A.2

CCSS.HSG.CO.B.7

CCSS.HSG.CO.A.5

CCSS.HSG.CO.A.4

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

The point that divides a segment into two congruent segments.

• Midpoint

• Angle bisector

• Point

• Plane

Tags

CCSS.HSG.CO.D.12

CCSS.HSG.GPE.B.6

A line that is perpendicular to a segment at it's midpoint

(a)  

Tags

CCSS.HSG.CO.C.9

CCSS.HSG.CO.A.1

CCSS.HSG.CO.D.12

A ray that divides an angle into two congruent angles

(a)  

Tags

CCSS.HSG.CO.D.12

True or false: A reflection makes a congruent figure. 

• true
• false

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.A.2

CCSS.HSG.CO.B.7

State a sequence of rigid motions that would map Quad QRST onto Quad PLKJ.

• A reflection over the x-axis followed by a reflection over the y-axis

• A rotation 180 degrees followed by a translation 2 units to the right

• A reflection over the y-axis followed by a translation 7 units down

• A reflection over the x-axis followed by a translation 6 units to the right and 3 units down

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.A.2

CCSS.HSG.CO.B.7

CCSS.HSG.CO.A.5

Congruent figures...

• Have the same dimensions (side lengths and angle measures)

• Are the same shape and size

• Can be mapped onto one another using rigid motions

• All of the above

Tags

CCSS.HSG.CO.B.6

CCSS.HSG.CO.B.7

CCSS.HSG.CO.B.8