here .
length of square is (8-√10) inches
to find area of square
we know
are
area of square = (L) square
=(8-√10)square
=64+16√10+10 ( using the formula (a-b) square )
(a square -2ab+b square)
=74-16√10 (adding two numbers)
ANsWEr
therefore the answer will be 74-16√10