point C ad B located on the x axis
the answer is b: 18
step-by-step explanation:
use the pythagorean theorem to .
a^2+b^2=c^2
plug 18 for "r"
the 2 legs are 18 and 24
18^2+24^2=c^2
324+576=c^2
900=c^2
c=30
30-12=18
18 is the radius
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