Dilation Warm-Up

Part I In the movie Honey, I Shrunk the Kids, an inventor shrinks his kids by a scale factor of about 1/240. If his kids were about 5 feet tall, how many inches tall were they after they were shrunk?

Part II You decided to make a movie spoof “Honey, I Blew Up the Kid”, where a two-year-old- boy is enlarged to a height of 117 feet. If the average height of a two-year old boy is 3 feet, what is the scale factor of this enlargement?

Dilation Writing-to-Win

When you enlarge something on a photocopy machine, is the image a dilation? Explain.

When you make a photocopy that is the same size, is the image a dilation? If so, what is the scale factor? If not, explain why.