Question 1112463
<pre>{{{drawing(240,400,-3,3,-5,5,

line(-2,0,0,4), line(2,0,0,4),line(2,0,0,-4),line(-2,0,0,-4),
line(-2,0,2,0),line(0,-4,0,4),locate(-1,0,x),locate(.1,2,2x),
locate(-1.4,2,7) )}}}{{{matrix(12,1,

matrix(1,8,We,let,x,""="",half, the,short,"diagonal."),
matrix(1,8,So,then,2x,""="",half, the,long,"diagonal."),
matrix(1,4,By,the,Pythagorean,"theorem,"),
matrix(1,7,x^2,""+"",(2x)^2,"",""="","",7^2),
matrix(1,7,x^2,""+"",4x^2,"",""="","",49),
matrix(1,5,5x^2,"",""="","",49),
matrix(1,5,x^2,"",""="","",49/5),
matrix(1,5,x^2,"",""="","",9.8),
matrix(1,5,x,"",""="","",sqrt(9.8)),
matrix(1,5,x,"",""="","",3.13),
matrix(1,10,short,diagonal,"",""="","",2*3.13,"",""="",6.26,cm),
matrix(1,10,long,diagonal,"",""="","",2*6.26,"",""="",12.52,cm) )}}}

Edwin</pre>