8th grade

Two figures can be similar if they have the _______ shape but _______ size.

• Different, Same
• Same, Same
• Same, Different
• Different, Different

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

Tags

CCSS.8.G.A.3

Point B (-10,-6) is dilated with a scale factor of 1/2 and the center of dilation at the origin. What are the coordinated of B'?

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

Tags

CCSS.8.G.A.3

Figure DMPN is dilated to form figure D'M'P'N. What is the scale factor?

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.8.G.A.3

A triangle has a perimeter of P units. The triangle is dilated by a scale factor of 2.

Which expression could represent the perimeter of the new shape?

• 2P units

• 4P units

Tags

8.10.D

A rectangle is dilated by a scale factor of 3. What will be the resulting effect on the area?

• It will be dilated by scale factor of 3

• It will be dilated by a scale factor of 3²

• There will be no effect on the area

• It will be dilated by 1/3

Tags

8.10.D

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation
• 90^o counter clockwise rotation
• Reflection across the y-axis
• Reflection across the x-axis

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect Point C over the y-axis:

• (-3, 2)
• (3,2)
• (-2,3)
• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

(a)  

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

Tags

8.G.3

Triangle B is rotated 90° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A
• B
• C
• D

Tags

8.G.3