+129852 Triangle BDC is similar to triangle BEA
Therefore EA : DC = 20 : 10 = 2 : 1
Therefore...there are 3 parts to the total height of the figure
And...since the triangles are similar..it means that the height of triangle BEA to the height of triangle BDC = 2 : 1
So....the height of triangle BEA = h = (2/3) (36) = 24 cm
