Similarity Practice

The pair of figures is similar. Find the length of the missing side.

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

Find the missing side length.

Find the missing side length. 

Solve for x. 

The two parallelograms above are similar.
What is the length in inches of line segment PQ?

The pair of figures is similar. Find the missing side.

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary

Calculate the value of the scale factor between the 2 triangles

How does a dilation change the angles of a polygon?

• It changes by the scale factor.
• Dilations do not change the angles.
• It is impossible to answer this question.  The angles change unpredictably.
• The angles all change to larger angles.