题目如图,⊙O\odot O⊙O的弦ABABAB垂直于ACACAC,AB=6cmAB=6cmAB=6cm,AC=4cmAC=4cmAC=4cm,则⊙O\odot O⊙O的半径等于______cm.cm.cm.知识点：圆周角定理I章节：图形的性质 / 圆
如图,的弦垂直于,,,则的半径等于______如图,的弦垂直于,,,则的半径等于______如图,的弦垂直于,,,则的半径等于______