Posted by Tara on Tuesday, June 5, 2012 at 9:34pm.
A student notices that the shadows of a sign and a tree lie among the same line and end at the same point. The height of the sign is 2 meters and its shadow is 3 meters in lenght. The distance from the base of the sign to the base of the tree is 12 meters. How tall is the tree?

geometry  Henry, Wednesday, June 6, 2012 at 5:29pm
12  3 = 9 m.=Length of tree's shadow.
2/3 = x/9
3x = 18
X = 6 m. = Ht. of tree.