see attachment
draw lines and do
big shape-smaller shape
remember
area triangle=1/2base tiems height
rectangle=lenght times width
hmm, 2+6+8=16
big one is 16 by 16 or 256 squaer inches
the parts that are highlighted in the attachment are te parts you need to subtract
so
we got 4 triangles
the top ones have base 6 and height 2
the side ones are height 6 and base 2
the 2 rectnagles/squares are 2 by 2
the triangles are
1/2 times 6 times 2=6
4 of them
4 times 6=24
the squares
2 of them
2 times 2 times 2=8
24+8=32 is the amount to minus
256-32=224 square inches
9. w≤100