Dilations

Question 1

Triangle ABC is dilated using the dilation rule D0.5(x, y) to form triangle A’B’C’. Point A is located at (10, 7.5), point B is located at (–5, 2), and point C is located at (0.5, –7). What are the coordinates of A’? What are the coordinates of B’? What are the coordinates of C’?

Revolt · Accepted Answer

(5, 3.75); Selection 1: (5, 3.75); Selection 2: (–2.5, 1); Selection 3: (0.25, –3.5)

Question 2

Question 2

Revolt · Accepted Answer

(–2.5, 1)

Question 3

Question 3

Revolt · Accepted Answer

(0.25, –3.5)

Question 4

Which is the rule for the dilation of quadrilateral DEFG to quadrilateral D’E’F’G’?

Revolt · Accepted Answer

D0.25(x, y)

Question 5

Triangle ABC is transformed to triangle A’’B’’C’’ by first rotating triangle ABC 90°, and then performing a dilation. Which transformation was used?

Revolt · Accepted Answer

D0.5(x, y)

Question 6

Explain the differences between an isometric transformation and a dilation.

Revolt · Accepted Answer

An isometric transformation is a transformation in which the image is congruent to the pre-image. Both corresponding sides and corresponding angles are equal. A dilation is a transformation in which the corresponding angles of the image are congruent to the pre-image, but the corresponding sides are proportional. This ratio is determined by a scale factor. Dilations create similar images.

Question 7

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

Isometric transformations create congruent images.; Dilations create images with proportional corresponding sides.; Dilations create images with congruent corresponding angles.; Dilations create similar images.

Dilations Answers

More from this Course

TRY EDGENUITY HACKS