This sketch dilates the preimage to the image, and asks you to find the center of dilation. [br]If you choose Challenge Mode you will also be asked to guess the scale.[br][br]Score up to 100 for placement, with possible bonuses up to 100.[br]In Challenge Mode, you can score up to another 100 by guessing the scale: but caution - negatives are possible. (Hit enter after entering a scale.)[br][br]Guess where the center of dilation is. Move the blue X labeled Guess until you've got it, then click the "Score It" button. A game is 5 rounds. A perfect score is 1000, but anything over 500 is excellent.

More GeoGebra (and games) at [url]bit.ly/mh-ggb[/url]