Homework Help: geometry

Posted by Anonymous on Tuesday, January 17, 2012 at 10:35pm.

Pine Tree In order to estimate the height h of a tall pine tree, a student places a mirror on the ground and stands where she can see the top of the tree, as shown. The student is 6 feet tall and stands 3 feet from the mirror which is 11 feet from the base of the tree. What is the height h (in feet) of the pine tree?

geometry - Reiny, Tuesday, January 17, 2012 at 11:29pm
Can't see your diagram, but I know the question.
You have similar triangles, so use ratios

h/11= 6/3
h = 11(2) = 22

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