resize image

When you resize a shape it gets bigger or smaller ...


... but it still looks similar:


Here we call it resizing, but other people call it dilation, contraction, compression, enlargement or even expansion! Same idea, just different names.

To resize, just do this for every corner:

  • draw a line from the central point to the corner
  • increase (or decrease) the length of that line
  • put a dot at the new point

Then just connect the dots for the resized shape!

resize triangle on graph

Try It Yourself

Press "Play" button.


Try placing the pin in different locations, too.


5150, 5151, 845, 846, 2131, 2132, 3352, 3353, 3354, 3355