Question 1175212

given:
a right triangle -> so, use Pythagorean theorem  {{{c^2=a^2+b^2}}}

let the first dimension be {{{a}}}, the second dimension be {{{b}}}, and the third dimension be {{{c}}}

if the first dimension measures {{{a=6cm}}} and the second dimension measures {{{b=8cm}}}, then the third dimension will be 

{{{c^2=(6cm)^2+(8cm)^2}}}
{{{c^2=36cm^2+64cm^2}}}
{{{c^2=100cm^2}}}
{{{c=sqrt(100cm^2)}}}
{{{c=10cm}}}


so, the last dimension measures {{{10cm}}}