Mathematics
11 Online
OpenStudy (anonymous):
What is the area of a circle with a 13 cm diameter?
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OpenStudy (anonymous):
132.73cm
OpenStudy (anonymous):
A=pi * r^2
OpenStudy (anonymous):
piR^2
13/2=6.5
6.5*6.5=42.25
OpenStudy (anonymous):
A≈132.73cm²
OpenStudy (anonymous):
42.25*3.14=132.665
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OpenStudy (anonymous):
\[\pi \times 6.5^{2}\]\[6.5^{2}=42.25\]\[42.25\times \pi =132.665\]
OpenStudy (anonymous):
A≈132.73cm²
OpenStudy (anonymous):
shain show ur work where u got tht cuz they r saying differently
OpenStudy (anonymous):
Hippo how are you getting 132.73?
OpenStudy (anonymous):
hey plz don't strt a answering war its right
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OpenStudy (anonymous):
look at ur equation again
OpenStudy (anonymous):
yah, PI*r^2
OpenStudy (anonymous):
look it up and see how u do it -_-
OpenStudy (anonymous):
Hippo got 132.73 because he probably just used Google calculator.
OpenStudy (anonymous):
lol i love it when u make tht face shain
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OpenStudy (anonymous):
haha
OpenStudy (anonymous):
Lol, google says hippo is right. dk how, but it says so
OpenStudy (anonymous):
it doesn't matter how he got it it was right and yall need to stop depending on google
OpenStudy (anonymous):
im right right look atthe equation
OpenStudy (anonymous):
Although google is wrong. I did the same thing they did but still got 132.665
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OpenStudy (anonymous):
No, Google is right, but when using Google, it uses the full pi instead of 3.14, therefore changing the answer slightly.
OpenStudy (anonymous):
Ahhh, I see
OpenStudy (anonymous):
well here is another one: Wht is the area of a circle with the radiuos of 53in
OpenStudy (anonymous):
53*53=2809
2809*3.14=8820.26