Similarity

If two figures are similar, the corresponding sides are ______________.

• equal
• congruent
• proportional
• none of these

If two figures are similar their angles are______.

• proportional
• congruent
• supplementary
• complementary

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

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

• x = 12
• x = 3
• x = 40
• x = 4

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.

What is the value of X?

• X=4
• X=6
• X=3
• X=2

Solve for X.

• 2 ft
• 3 ft
• 4 ft
• 6 ft

Are the triangles similar?

• Yes
• No

Are the triangles similar?

• Yes
• No

When you dilate a figure you...

• slide it.
• turn it.
• flip it.
• make it larger or smaller.