Similarity, Proportions, Congruence Slides

What does congruent mean?

• Same shape, different size
• Not same shape, or size
• Same size, same shape

Which statement is the congruence statement for the 2 triangles?

What is ratio of any two corresponding sides?

• Scale Factor
• Corresponding Sides
• Similar Figures

Which of the following is NOT true about similar figures?

• A) Similar figures always have the same shape.
• B) Similar figures always have the same size.
• C) Similar figures always have corresponding angles that are equal.
• D) 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

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

• x = 20
• x = 12
• x = 5
• x = 4

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

• an enlargement
• a reduction
• a scale factor

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

• a reduction
• an enlargement
• a scale
• not proportional

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4