Simple geometry can compute the height of an object from the object's shadow length and shadow angle using the formula: tangent(angleElevation) = treeHeight / shadowLength. 1. Using simple algebra, rearrange that equation to solve for treeHeight. (Note: Don't forget tangent). 2. Complete the below code to compute treeHeight. For tangent, use the Math. tan() method, described in the "math methods" link above.