Question
Thu February 12, 2009 By:

geometry

Expert Reply
Fri February 13, 2009

 height of piller  = ac + bc

and we have  (ac)2 + (ba)2 =  (cb)2  ===>  (2.4) 2 + (1.8)2 = (bc)2 ===> bc = 3

so height of piller = 2.4 + 3 = 5.4m

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