**HOW TO USE THIS APPLET**

## The graph area

- Drag any vertex of either triangle to reposition it.
- SHIFT-Drag any vertex of either triangle to reposition it horizontally or vertically.
- Drag the highlighted location in the interior of either triangle to reposition the entire triangle.
- SHIFT-Drag the highlighted location in the interior of either triangle to reposition the entire triangle horizontally or vertically.
- Click the side of a triangle to reflect the triangle about that side.
- Drag the faint horizontal line through the highlighted location in the interior of either triangle to rotate the triangle.
- Drag the faint vertical line through the highlighted location in the interior of either triangle towards or away from the highlighted point to re-size the triangle.
- CONTROL-Drag any location in the graph area towards or away from the center of the graph area to rescale the triangle sides.

## Other

- Use the "RENAME" button to change the names of the angles (and resulting sides).
- Use the "RESET" button to restore the applet to the initial state.

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