Geometry Scale Factor Practice

A scale drawing that measures 8 units wide and an original that measures 4 units wide has a scale factor of...

• 2:1

• 8:1

• bigger

• 1:2

Scale Factor of ½ is __________________ .

• Reduction

• Enlargement

The square ABCD is dilated by a factor of 2, with the origin as the center of dilation, to form A 'B 'C 'D '. After the dilation, what is the location of C '?

• (4, -6)

• (4, -5)

• (-5, 4)

• (-6, 4)

Which series of transformations shows that figures 1 and 2 are similar?

India drew pentagon A on a coordinate grid. She then performed a rotation followed by a dilation with scale factor 5 to produce pentagon B. Which is a true statement about the two pentagons?

• They are similar and congruent.

• They are similar, but not congruent.

• They are neither congruent nor similar.

• They are congruent, but not similar.

Trapezoid P 'Q 'R 'S ' is the result of a reflection of PQRS, followed by a dilation. Which statement best describes the relationship between P 'Q 'R 'S ' and PQRS?

• They are similar but not necessarily congruent.

• They are congruent.

• They may or may not be similar.

• They cannot be similar.

Which series of transformations shows that figures 1 and 2 are similar?

Which transformation shows that ∆ ABC and ∆ DEF are similar?

• a translation of ∆ ABC 3 units up and 3 units to the right

• a translation of ∆ ABC 1 unit up and 3 units to the right

• a dilation of ∆ ABC with a scale factor of 2

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3