7. the formula for octagon is a=2(1+radical2)s^2
s=4
a=about 77.25
8.
Draw 37 circles and then use / slashes and cross out 19 of those circles
2 feet and 1 in. Explanation is subtract 3’8 from 6’4 then add 9in too it. Feet can only go to 12in. But you’ll get 3’4. Then add 9 and you’ll get 3’13 so you’ll get 4’1 and then just subtract that from 6’4 and you get 2’1
Answer:

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hope it helped you:)
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