A 6 foot tall man is standing near a tree on level ground as shown in the picture above the tree is 18ft if the man's shadow is 4ft long, how many feet tall is the tree

Your problem states that the tree is 18 ft.

Did you leave something out?

To find the height of the tree, we can use the concept of similar triangles. Let's use the following ratios:

Height of the man / Length of the man's shadow = Height of the tree / Length of the tree's shadow

Given that the height of the man is 6ft and his shadow is 4ft, we can write the equation as:

6ft / 4ft = Height of the tree / Length of the tree's shadow

Simplifying the equation:

1.5 = Height of the tree / 18ft

To find the height of the tree, we can now cross-multiply:

Height of the tree = 1.5 * 18ft

Height of the tree = 27ft

Therefore, the tree is 27 feet tall.