Similar Triangles Transformations

Find the missing length indicated.

Write down your work.

• 30

• 25

• 45

• 50

Find AB. Hint: Solve for x and then find AB. Write down your work.

• 16

• 4

• 8

• 48

If the two triangles are similar, what is the measurement of x?

• 16

• 18

• 2.4

• 15

How long is side x?

• 2 ft

• 3 ft

• 4 ft

• 6 ft

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Which of the following is not a valid method to prove the similarity of two triangles?

• Angle-Side-Angle (ASA)

• Side-Angle-Side (SAS)

• Angle-Angle-Side (AAS)

• Angle-Angle (AA)

Given: PQ || BC.  Find the length of AB.

• 14

• 11

• 16

• 18

What similarity theorem would prove that these triangles are similar?

• SAS∼

• SSS∼

• AA∼

• Side Splitter

Which of the following describes the sequence of transformations shown?

• Reflection, then a rotation.

• Rotation, then a translation.

• Reflection across the x-axis, then a reflection across the y-axis.

• Translation, then a rotation.

Which sequence of transformations will get you from triangle ABC to its image triangle A'B'C'?

• Reflection, then a translation

• Rotation, then a dilation

• Reflection, then a rotation

• Dilation, then a reflection