Similar Figures

The diagram shows a dilation of line AB about the origin O. Determine the scale factor of the dilation by following these steps.

1. OA = 2.0 units OA' = 3.0 units, 2. OB = 3.0 units OB' = 4.5 units 3. AB = 2.2 units AB' = 3.3 units 4. OA' and OA = 1.5 5. OB' and OA = 1.5 6. AB' and AB = 1.5

Given the pre-image ABCD and the image after a dilation, A'B'C'D', what is true about the polygons? Check all that apply.

AB is 2, A'B' is 3, scale factor is 3/2

Given the dilation rule DO,1/3 (x, y) → and the image S'T'U'V', what are the coordinates of vertex V of the pre-image?

D. (0, 3)

The dilation rule DF,3(x, y) is applied to △ABC, where the center of dilation is at F(1, 1).

F(1, 1) is ✔ 3 unit(s). F(1, 1) is ✔ 1 unit(s). The vertex A' of the image is ✔ (-8, 4)

The rule DO,0.25 (x, y) → (0.25x, 0.25y) is applied to the segment LM to make an image of segment L'M', not shown.

The coordinates of L' in the image are ✔ (-1, 2). The coordinates of M' in the image are ✔ (1, 2) The length, L'M', is ✔ 2 The slope of the original segment and dilated segment are ✔ both zero.

The dilation DO,3 (x, y) → (3x, 3y) is performed on the pre-image △ABC to make a similar triangle. Which statements are true? Check all that apply.

∠A corresponds to ∠A'. ∠A'AC' corresponds to ∠B. CB corresponds to C'A. △ABC ~ △A'AC'.