Dilate Segments

Triangle JKL will be dilated with a scale factor of 3/2. What will be the coordinates of J'?

• (3,9)

• (9,3)

• (1.5, 4.5)

• (4.5, 1.5)

What scale factor was used to dilate Triangle LMN to Triangle L'M'N'?

• 1/2

• 2

• 3

• 1/3

Figure ABCD is dilated by a scale factor of 3.

What are the new coordinates of A'B'C'D'?

Evaluate responses using AI:

OFF

Triangle ABC is dilated by a scale factor of 1/2.

What are the new coordinates of A'B'C''?

Evaluate responses using AI:

OFF

Dilations map lines to lines to lines, segments to segments, rays to rays, and angles to angles of the same measure.

• True

• False

Triangle ABC is dilated by a scale factor of r=6.

What are the coordinates of A, B, and C?

What are the coordinates of A'B'C'?

Evaluate responses using AI:

OFF

Triangle ABC is dilated by a scale factor of r=1/3. What are the coordinates of A, B, and C? What are the coordinates of A'B'C'?

Evaluate responses using AI:

OFF

A three-inch line segment is dilated by a scale factor of 6 and centered at its midpoint. What is the length of its image?

• 9 inches

• 2 inches

• 15 inches

• 18 inches

In the diagram below, CD is the image of AB after a dilation of scale factor k with center E. Which ratio is equal to the scale factor k of the dilation?

• EC : EA

• BA : EA

• EA : BA

• EA : EC

After a dilation with center (0, 0) the image of DB is D'B'. If DB = 4.5 and D'B' = 18, the scale factor of this dilation is

• 1/5

• 5

• 1/4

• 4