iReady 8th Grade Lesson One Vocabulary

What is the center of rotation?

• The point where two lines meet

• A fixed point around which a figure is rotated

• The longest side of a triangle

• The midpoint of a segment

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Fill in the blank: The center of rotation is a _______ point around which a figure is rotated.

• fixed

• moving

• random

• changing

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What are corresponding angles? Fill in the blank: Corresponding angles are angles in the same _______ position in figures.

• relative

• vertical

• parallel

• opposite

Tags

CCSS.8.G.A.5

In the given diagram, which angle in triangle XYZ corresponds to angle BAC in triangle ABC?

• Angle Y

• Angle Z

• Angle X

Tags

CCSS.HSG.SRT.A.2

What are corresponding sides?

• Sides that are equal in length

• Sides in the same relative position in figures

• Sides that are parallel

• Sides that are perpendicular

Tags

CCSS.8.G.A.2

In the given diagram, the side BC in the first polygon corresponds to which side in the second polygon?

• IJ

• JK

• KL

• LM

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Fill in the blank: In geometry, an ______ is a figure that results from a transformation or sequence of transformations.

• image

• angle

• vertex

• segment

Tags

CCSS.HSG.CO.A.2

What is a line of reflection? Fill in the blank: A line of reflection is a line across which a figure is ________.

• reflected

• rotated

• enlarged

• translated

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Look at the diagram. Which line is the line of reflection?

• The solid blue line

• The dashed red line

• The blue triangle

• The grid lines

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is a reflection in geometry?

• A) A transformation that slides a figure

• B) A transformation that flips a figure across a line to form a mirror image

• C) A transformation that turns a figure around a point

• D) A transformation that enlarges a figure

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5