Geometry Unit 6 Quiz

What is the definition of a dilation?

• A transformation that changes the size of the figure

• A transformation that changes only the position of the figure

• A transformation that changes the shape of the figure

• A transformation that changes the position, shape, and size of the figure

Tags

CCSS.8.G.A.3

What is the length of segment AB after a dilation by a scale factor of 3 with a center at the origin?

• 3 times the original length

• 2 times the original length

• 4 times the original length

• 5 times the original length

Tags

CCSS.8.G.A.3

What does it mean for two figures to be similar?

• They have the same area

• They have the same dimensions

• They have the same perimeter

• They have the same shape but not necessarily the same size

Tags

CCSS.HSG.CO.B.6

CCSS.8.G.A.2

What methods can be used to prove two triangles similar?

• Angle-Side-Angle (ASA) Similarity

• Angle - Angle (AA) Similarity

• Side-Angle-Side (SAS) Similarity

• Side-Side-Angle (SSA) Similarity

Tags

CCSS.HSG.SRT.B.5

Does a dilation produce congruent or similar figures? Explain.

• Neither congruent nor similar figures

• Similar figures because they have the same shape but not necessarily the same size

• Congruent figures because they have the same size and shape

• It depends on the center of dilation

Tags

CCSS.8.G.A.3

If a line is dilated and the center is not on the line, the image will be a ___________________________.

• Similar line

• Reflection

• Perpendicular line

• Parallel line

Tags

CCSS.8.G.A.3

If a line is dilated and the center is on the line, the image will be the ___________________________.

• Parallel line

• Same line

• Reflection

• Perpendicular line

Tags

CCSS.8.G.A.3

What is the result of a dilation with a scale factor of 1/2 centered at the origin on the coordinates of a point?

• The coordinates of the point remain unchanged

• The coordinates of the point are doubled

• The coordinates of the point are halved

• The coordinates of the point are tripled

Tags

CCSS.8.G.A.3

Which property is preserved in a dilation?

• Area

• Perimeter

• Angle measures

• Side lengths

Tags

CCSS.HSG.CO.A.2

How does a dilation with a scale factor greater than 1 affect the size of a geometric figure?

• It decreases the size of the figure

• It increases the size of the figure

• It does not change the size of the figure

• It doubles the size of the figure

Tags

CCSS.8.G.A.3