Dilations Review

Front

Two figures are congruent if they have the _______ shape and _______ size.

Back

Same, Same

Front

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

Back

Same, Different

Front

What symbol is used to show that two figures are similar?

Back

Front

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

Back

True

Front

When the scale factor of a dilation is between 0 and 1, the dilation is a reduction (shrinks).

Back

True

Front

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

Back

(-5,-3)

Front

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

Options: 2, 3, 1/3, 1/2

Back

2

Front

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

Back

¼

Front

Triangle ABC is dilated using a scale factor of 1/2. The center of dilation is at the origin. What are the new coordinates of point A'?

Options: (-3, 3) , (-12, 12), (-2, 2)

Back

(-3, 3)

Front

Transform △ ABC with vertices A(4,8), B(8,0), C(-8,4) to △ A′′B′′C′′. Options: Rotate 90° clockwise, dilate by 4; Rotate 90° counterclockwise, dilate by 4; Rotate 90° clockwise, dilate by 1/4; Rotate 90° counterclockwise, dilate by 1/4.

Back

Rotate △ ABC 90° counterclockwise around the origin. Dilate the image by a scale factor of 1/4 with a center of dilation at the origin.