Hi Becka,
The angle and height can be pretty much anything you want.
In the diagram above, the height is h = AB and since the base is 14 inches, BC = 7 inches. Thus
tan(BCA) = ^{h}/_{7} or h = 7 tan(BCA)
Hence if you chose the value of either h or the measure of the angle BAC you can calculate the other.
Penny
