Asked by an

A man 6 feet tall walks along a walkway which is 30 feet from a the base of a lamp which is 126 feet tall. The man walks at a constant rate of 3 feet per second. How fast is the length of his shadow changing when he is 40 feet along the walkway past
the closest point to the lamp?
Answered by an
Help me please!!!
Answered by Steve
see

http://www.jiskha.com/display.cgi?id=1476803497
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