Exploring Reflections in Geometry

What is the first step in reflecting a shape across an axis?

• Draw the mirror line

• Label the vertices

• Count the squares

• Join the vertices

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If point A is 3 spaces away from the y-axis, where will its reflection A' be?

• 3 spaces on the same side

• 5 spaces on the opposite side

• 3 spaces on the opposite side

• 2 spaces on the same side

Tags

CCSS.8.G.A.2

What does the symbol with three lines represent?

• Similar

• Equal

• Congruent

• Parallel

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When reflecting a rectangle across the x-axis, what is the next step after finding the reflection of point A?

• Label the mirror line

• Join the vertices

• Find the reflection of point D

• Find the reflection of point B

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If point B is 5 spaces away from the x-axis, where will its reflection B' be?

• 2 spaces on the same side

• 3 spaces on the opposite side

• 5 spaces on the same side

• 5 spaces on the opposite side

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the mirror line when reflecting a shape across x = 3?

• x = 0

• y = 3

• x = 3

• y = 0

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When reflecting a shape across y = x, how should the distance be measured?

• Perpendicular to the mirror

• Horizontally

• Vertically

• Parallel to the mirror

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If a point is 2 squares away from the line y = x, where will its reflection be?

• 1 square on the same side

• 2 squares on the same side

• 2 squares on the opposite side

• 3 squares on the opposite side

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the first step in reflecting a shape across y = -2?

• Join the vertices

• Draw the mirror line

• Count the squares

• Label the vertices

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the next topic after reflection in the video?

• Shearing

• Rotation

• Scaling

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5