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Homework Help: physics-please help

Posted by SABRINA on Monday, August 27, 2012 at 8:09am.

A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

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