Question 918781


the hypotenuse of a right triangle measures {{{c=20mm}}} and one leg measures {{{a=16mm}}}: 
to find the length of other leg {{{b}}} use Pythagorean theorem

{{{c^2=a^2+b^2}}}

{{{b^2=c^2-a^2}}}.....plug in {{{c=20mm}}} and {{{a=16mm}}}

{{{b^2=(20mm)^2-(16mm)^2}}}

{{{b^2=400mm^2-256mm^2}}}

{{{b^2=144mm^2}}}

{{{b=sqrt(144mm^2)}}}

{{{b=12mm}}}