Question 5393
the hypoteneuse can be found by 

hypoteneuse = {{{sqrt(a^2+b^2)}}}
where a = one leg of the triangle
and b = the second leg of the triangle

hypoteneuse = {{{sqrt(4^2+6^2)}}}
hypoteneuse = {{{sqrt(16+36)}}}
hypoteneuse = {{{sqrt(52)}}}

or {{{2*sqrt(13)}}}