4.5 Exploration, example #1
Directions
Use the applet below to construct a dilation by the given scale factor by following these directions:
- Use the line tool to construct a line that passes through point A (the center of dilation) and point B (a pre-image point)
- Use the segment tool to trace a segment from point A to point B (This is the equivalent of opening a compass up to that width)
- Use the compass tool to find an image point that is 3 times as far from the center of dilation as the pre-image. Use the point tool to mark that point on the applet.
- Repeat this process for each of the other two pre-image points.
- Use the polygon tool to trace the final image.