. A cyclist at 'C' is cycling towards 'B'. How far will he have to cycle from C before he is equidistant from both A and B ?

Attachment 22918

(1) 4 km

(2) 3 km

(3) 6 km

(4) 5 km

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- Nov 28th 2011, 12:24 AMsureshrjuFind the Distance
. A cyclist at 'C' is cycling towards 'B'. How far will he have to cycle from C before he is equidistant from both A and B ?

Attachment 22918

(1) 4 km

(2) 3 km

(3) 6 km

(4) 5 km - Nov 28th 2011, 01:00 AMprincepsRe: Find the Distance
http://i.imgur.com/d2Nj3.jpg

So...

$\displaystyle \sqrt{x^2+16}=8-x$