Before you start you should open the drawing toolbar by clicking on:

>View >Toolbars >Drawing.

Method 1: using MS Word

1. On the drawing toolbar, click AutoShapes. From the choice of "Basic Shapes" choose a triangle.
2. Drag the handles to make the triangle the shape you want.Insert a text box near one of the vertices.
3. Format the text box to remove the line and fill colour. The text box will then become transparent.
4. Change the font to Arial or some other suitable san serif font.
5. Copy the textbox to the other vertices (Hold down the ctrl key and drag is probably easiest).
6. Type in the labels.
7. Shift select labels and triangle. Group the textboxes and triangle so that it stays in one place.
8. Format the new object and choose the wrapping that you want. (MS Word defaults to the setting where the object is in front of the text).

Method 2: Cut and paste from Sketchpad

If you have Geometer's Sketchpad:

1. Draw the figure in Geometer’s Sketchpad.
2. Select the figure in Sketchpad
3. Copy and paste into Word.