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OpenStudy (nautika27):
The circle above has a radius of 9 cm. What is the area of the circle? Use = 3.14. 28.26 cm2 56.52 cm2 254.34 cm2 508.68 cm2
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OpenStudy (nautika27):
OpenStudy (skullpatrol):
any ideas?
OpenStudy (nautika27):
a ?
OpenStudy (anonymous):
A = (pi) * r^2
OpenStudy (nautika27):
I just guess iam really not good at this
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OpenStudy (anonymous):
its 254.34cm^2
OpenStudy (anonymous):
A = 3.14 * 9^2 A = 3.14 * 81 A = ?? can you do the math now
OpenStudy (skullpatrol):
don't guess, try to use the formula
OpenStudy (nautika27):
ok
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