Question 776158
An isosceles triangle is a triangle with two equal sides.

Let sides be {{{a}}} and two equal sides {{{b}}}.

Then a perimeter is {{{P=a+2b}}}.

If an isosceles triangle has a perimeter of {{{P=16in}}}, then we have:

{{{16in=a+2b}}}

If the length of one of the two {{{equal}}} sides is {{{5in}}}, then {{{b=5in}}} and {{{16in=a+2*5in}}}

or {{{16in=a+10in}}}....now solve for {{{a}}} to find the length of the other side

{{{16in-10in=a}}}

{{{a=6in}}}...the length of the other side