Move one of the
triangle's vertices by dragging with the
right mouse button. (Notice the mouse cursor changes from an "arrow"
to a "hand" when it is in position to move the point. Do not start dragging until the cursor changes to a "hand".)
The sides of the triangle move
with the vertex, as expected.
To return to the
original triangle, use the "Reload"
button
in your browser.
Continue 
|