Question 343518
NEED TO KNOW:
ISOSCELES TRIANGLE HAS 2 SIDES THAT ARE EQUAL
LET X BE THE LENGTH OF THOSE TWO SIDES

THE QUESTIONS STATES THE FOLLOWING TO BE TRUE:
THE SHORTEST SIDE IS 2 FT LESS THAT OTHER TWO SIDES.
{{{X-2}}} REPRESENTS THE SHORTEST SIDE.

PERIMETER IS THE TOTAL LENGTH OF ALL THREE SIDES
{{{X+X+(X-2) = 22}}}
COMBINE:
{{{3X-2=22}}}
SOLVE:
ADD 2 TO BOTH SIDES OF THE EQUATION
{{{3X=24}}}
DIVIDE BOTH SIDES OF THE EQUATION BY 3
{{{X=8}}}
THE SHORTEST SIDE IS {{{X-2=highlight(6)}}}

CHECK YOUR ANSWER  8+8+6=22