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OpenStudy (anonymous):
if circle has an area of 25in^2 what would its radius be
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OpenStudy (amistre64):
what is the formula for the area of a circle?
OpenStudy (anonymous):
pi x radius^2
OpenStudy (amistre64):
A = pi r^2 ; now we can arrange things about so that we solve for r, correct?
OpenStudy (anonymous):
ok
OpenStudy (amistre64):
we can divide off a pi and sqrt the whole thing sqrt(A/pi) = r ; since A = 25 and pi = pi, the rest is just button work
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OpenStudy (anonymous):
ok thanks
OpenStudy (amistre64):
yw
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