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Answer the foll.png
 
(i) \(AD\) is the altitude. -
 
(ii) \(BC\) is the altitude. -
 
(iii) \(AC^2\) \(=\)  \(\cdot BC\).
 
(iv)\(\Delta ABD\) is  to \(\Delta ABC\).
 
(v) The formula for \(BC\) \(=\)