Alexis is standing 12.5 ft from the building . her eye level is 5ft from the ground . she finds that the angle of elevation to the top of the building is 78. Find the height of the building to the nesrest tenth

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m