Scale and Proportional Figures

What is ratio of any two corresponding sides?

• Scale Factor

• Corresponding Sides

• Similar Figures

Which of the following is NOT true about similar figures?

• Similar figures always have the same shape.

• Similar figures always have the same size.

• Similar figures always have corresponding angles that are equal.

• Similar figures always have corresponding sides that are proportional.

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

• equal

• congruent

• proportional

• none of these

What is the similarity statement for the triangle pair?

• ΔXYZ is similar to ΔNEW

• ΔXZY is similar to ΔNWE

• ΔZYX is similar to ΔENW

• ΔYZX is similar to ΔNWE

If the scale factor is greater than one, the new figure will be

• reduction

• enlargement

• scale

• not proportional

If the triangles are similar, find x

• 90

• 60

• 30

• 15

Complete the similarity statement.

• they are not similar

Complete the similarity statement.

• they are not similar