Similar Triangles and Dilations

A dilation produces a similar figure.

• True

• False

Are the triangles similar?

• Yes

• No

Find the missing side. Triangle JKL is similar to triangle PQR.

• 24

• 54

• 18

• 72

Find the missing side. Triangle JKL is similar to triangle PQR.

• 6.5

• 26

• 8.7

• 19.5

Triangle ABC with side lengths 5, 12, and 13 will be dilated with a scale factor of 3. What will be the side lengths of the dilated triangle?

• 8, 15, 16

• 15, 36, 39

• 15, 24, 39

• 8, 36, 45

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)

Dilations ALWAYS increase the length of line segments.

• True

• False

Dilations of a triangle are similar to the original triangle.

• True

• False

Dilations of an angle are congruent to the original angle.

• True

• False

Dilations take perpendicular lines to perpendicular lines.

• True

• False