Enlargement

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.

What is ratio of any two corresponding sides?

• Scale Factor
• Corresponding Sides
• Similar Figures

All angles in similar figures are congruent.  

• True
• False

What does congruent mean?

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

What is the scale factor from MNOP to ABCD?

• 2/3
• 3/2
• 2
• 3

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

• x = 12
• x = 3
• x = 40
• x = 4

What is the scale factor from ΔDEF to ΔABC?

• 1/2
• 7/3
• 2
• 10/3

The two rectangles are scale drawings. What is the measurement of x?

• 21
• 1.25
• 20
• 4

What is the scale factor if the triangle on the left is the original?

• 2
• 3/2
• 2/3
• 1/2

Find the perimeter of the large triangle.

• 24
• 36
• 12
• 54