geomtry
posted by najah .
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?

Don't you understand the solution I posted for you?
http://www.jiskha.com/display.cgi?id=1301010240 
obviously not

your suppose to use Pythagorean Theorem
(a2+b2=c2 
In the diagram, a building casts a 35ft shadow and a flagpole casts an 8ft shadow. If the flagpole is 18 ft tall, how tall is the building? Round to the nearest tenth.

The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth.