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OpenStudy (anonymous):
What is the diameter of a circle that has an area of 452.16 mm 2? 144 mm 12 mm 24 mm 6 mm
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OpenStudy (skullpatrol):
Any ideas?
OpenStudy (anonymous):
yep
OpenStudy (skullpatrol):
$$\Huge D=2*r$$
OpenStudy (skullpatrol):
$$\Huge A=\pi r^2$$
OpenStudy (anonymous):
@skullpatrol is it 24??
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OpenStudy (anonymous):
so 144 is not the answer
OpenStudy (anonymous):
since Diameter = square root of (452.16/pi)*2 = 23.99391574 or about 24 mm
OpenStudy (anonymous):
@parisgirl1515 no lol
OpenStudy (anonymous):
ok
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