Transformations and Congruence
- Jennifer Silverman
Choose the Insert Image tool (Purple Flower). Click on point A and a window appears to browse for your photo. Choose a file and hit Open. Right click on the image to bring up its editing window (above) and choose Object Properties. Click on the Position tab, and enter “B” for Corner 2, the lower right corner. Close that panel. Your image is now sized and fixed to the grid. Perform each of the four transformations on your original image. What do you notice about the size and shape of each?
Similar figures have the same shape and may be the same size. Congruent figures have the same shape and must be the same size. Which transformations produce congruent figures? What is the word for a transformation that doesn't change the size or shape of a figure?