設M是AC中點,連OM, OC, 直角三角形CMO中,OM是BC的一半,可求出CO, 因此,直角三角形AOC中,可求直徑AO
設M是AC中點,連OM, OC, 直角三角形CMO中,OM是BC的一半,可求出CO, 因此,直角三角形AOC中,可求直徑AO
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