



 
Hi Esada, I converted the lengths of the shadows to inches. I then had the son stand in his father's shadow so that the tips of their shadows were at the same point $C.$ Since the father and son are both standing perpendicular to the ground it is clear that $ABC$ and $DEC$ are similar triangles. You also know that the son is 4'8" = 56" tall. Can you complete the problem now? Penny  


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