Question 1206046
<pre>
{{{drawing(400,280,-1,7,-1,4.6,

line(0,0,6,0), line(6,0,6,3.605551275), line(6,3.605551275,0,3.605551275),
locate(3,2.25,7),locate(3,0,6),locate(6.08,2,x),
line(0,0,0,3.605551275), line(0,0,6,3.605551275) )}}}

{{{6^2+x^2=7^2}}}

Can you solve for x? If you don't know how, post again, saying you 
don't know how.

Edwin</pre>