Mathematics
10 Online
OpenStudy (anonymous):
...
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OpenStudy (anonymous):
OpenStudy (anonymous):
is it 484 square feet?
OpenStudy (anonymous):
A= 22^2 = 484 square feet
OpenStudy (anonymous):
area of the whole thing = big aquare - the 2 squares
OpenStudy (anonymous):
so the area of the whole space is \(A=s*s=22*22=484\(
however we're removing those 2 7x7 corners
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OpenStudy (anonymous):
err \(A=s*s=22*22=484\)
OpenStudy (anonymous):
so i wouldnt include the 7 ft in it? just the 15 then
OpenStudy (anonymous):
no it would, you just have to subtract the 7x7 square twice over
OpenStudy (anonymous):
oh so take 49 off of 484 ?
OpenStudy (anonymous):
meaning 484-49-49
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OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
there are 2 of those squares
OpenStudy (anonymous):
okay. so 366
OpenStudy (anonymous):
I got a different number check your calculator
OpenStudy (anonymous):
i did the math myself. let me try it again.
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OpenStudy (anonymous):
386 ?
OpenStudy (anonymous):
i was about to say yeah cause i was too lazy to check on my calculator lol
yeah
OpenStudy (anonymous):
i added 49 and 49 together and subtracted 98 thats why i ended up with 366 rather than 386.
OpenStudy (anonymous):
another way of doing it is calculating the 4 separate areas of these rectangles but that's unnecessarily annoying
OpenStudy (anonymous):
oh god lol i would come up with the same answer right? lol i think ill stick to the easy method.
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OpenStudy (anonymous):
lol I actually want to check it now, let me fill in the numbers
OpenStudy (anonymous):
okay lol
OpenStudy (anonymous):
let me know what you come up with lol
OpenStudy (anonymous):
lets see hope i did it all right
OpenStudy (anonymous):
we have
1: 15x7
2: 15x8
3: 7x8
4: 7x15
105+120+56+105=386
is that what we got?
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OpenStudy (anonymous):
yeah, nice
OpenStudy (anonymous):
woooop. you're the best.
OpenStudy (anonymous):
I know right :p
OpenStudy (anonymous):
for sure. couldn't study geometry without you lol
OpenStudy (anonymous):
and the other peoples that help you out
good luck with the rest of your stuffs
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OpenStudy (anonymous):
oh yeah dont forget to give yourself some credit too
OpenStudy (anonymous):
very important