Answer:
2.2 ft
Step-by-step explanation:
Solved by proportionality, if the tree is 15 ft long and casts a shadow of 5.5 ft, a man's shadow, 6 ft tall, should be proportional to the shadow cast by the tree, as follows:
6/15 (ratio between heights) = 5.5 / x (ratio between shadows)
solving for x we have:
x = 5.5 * 6/15
x = 2.2
Therefore, the shadow of the 6 ft tall man will be approximately 2.2 ft.