Ambiguous Case of Side-Side-Angle Triangle

    [list=1] Use the slider to change the length of side BD. [list=2] Move point B to change angle BAD. Angle A is congruent to angle H, angle B is congruent to angle J, side AB is congruent to side HJ, and side BD is congruent to side JK. [list=3] The show 2nd triangle button will show all possible triangles in the top construction.
National Council of Teachers of Mathematics Classroom Resources Committee Jerel Welker