How to determine the scale factor of a dilation for enlargement

The video tutorial explains how to determine if a transformation is an enlargement or reduction by comparing two triangles, A and B. It introduces the concept of scale factors, explaining that a scale factor greater than 1 indicates enlargement, while less than 1 indicates reduction. The tutorial demonstrates calculating the ratio of side lengths to find the scale factor, showing that triangle B is an enlargement of triangle A by a factor of 2.

What is the relationship between triangles A and B in terms of size?

• A and B are unrelated

• A is the same size as B

• A is larger than B

• A is smaller than B

What does a scale factor greater than 1 indicate?

• Enlargement

• Reduction in size

• Inversion

• No change in size

If a scale factor is less than 1, what does it imply?

• The shape remains the same

• The shape is reduced

• The shape is inverted

• The shape is enlarged

What is the scale factor from triangle A to triangle B?

• 1

• 1.5

• 0.5

• 2

How many times larger is triangle B compared to triangle A?

• Half the size

• Triple the size

• Same size

• Double the size