Note
The figure may look different from what you see. Your starting shape may have been
bigger or smaller, and that’s okay as long as the resulting size is 1.2 inches in width and
0.8 inches in height.
Editing the polygons
Now, you’ll make a copy of the polygon and create the rest of the diamond gem.
With the triangle still selected, choose Object > Transform > Reflect. In the Reflect dialog box,
select Horizontal, and click Copy.
Drag the new (top) triangle from the center widget (the blue circle in the center) so its top edge
snaps to the bottom edge of the original triangle.