In this tutorial we will be setting up a quick little demonstration of the ambiguous case.
First, put three points on the window using the Point Tool from the toolbar on the left.
Then connect two pairs of points using the Segment Tool-also on the left.
Now create a third segment from one point to the opposite line segment. Do not complete the triangle or the demonstration will not work.
Select 3 points in order to measure the angle at the left of the triangle-the known angle in the problem. This tool is found in Measure -> Angle.
Then select 3 points in this order to measure the unknown (ambiguous) angle of the triangle
Select the segment (mine is labelled AD) and go to Measure -> Length.
What you now have is a functioning Ambiguous Case of the Sine Law demonstration. This is shown by dragging the point D left and right on the segment BC. All the measured angles and lengths will automatically update. You can even rearrange the initial points to demonstrate why there is no ambiguity in an obtuse triangle.
Hope you had fun!