Similar Triangles Exercises

Example 1

Identify whether a dilation of ratio  is a reduction, an enlargement, or a congruence.

Example 2

If A is at (-5, 7), where would A' be located under dilation about the origin of ratio 4?

Example 3

If HI = 12, what is the length of H'I' under dilation about J of ratio ?

Example 4

If KL = 6 and MN = 9, which is the preimage if the scale factor is ?

Example 5

The preimage QR = 15 while the image Q'R' = 5. What is the scale factor of this dilation?

Example 6

Identify the coordinates of the center of dilation if the scale factor is 3.

Example 7

Find the value of m.

Example 8

Find the value of n.