Draw diameter AD. Because angle ABC is 45 degrees, so is angle D. Meanwhile, Angle ACD=90 degrees.
AC = sqrt(16+1)=sqrt(17). Then AD = sqrt(2)*AC= sqrt (34).
Draw diameter AD. Because angle ABC is 45 degrees, so is angle D. Meanwhile, Angle ACD=90 degrees.
AC = sqrt(16+1)=sqrt(17). Then AD = sqrt(2)*AC= sqrt (34).
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