Question 1157764
{{{ A[1] = 9^2 }}}
{{{ A[1] = 81 }}} yds2
and
{{{ A[2] = ( 9 + 7 )^2 }}} 
{{{ A[2] = 16^2 }}}
{{{ A[2] = 256 }}}
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{{{ A[2] - A[1] = 256 - 81 }}}
{{{ A[2] - A[1] = 175 }}} 
The area is increase by 175 square yds