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> 如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为()A.6cmB.8cmC.10cmD.12cm-数学
如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为()A.6cmB.8cmC.10cmD.12cm-数学
题目简介
如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为()A.6cmB.8cmC.10cmD.12cm-数学
题目详情
如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为( )
A.6cm
B.8cm
C.10cm
D.12cm
题型:单选题
难度:偏易
来源:湖州
答案
B
上一篇 :
如图,在等腰Rt△ABC中,∠C=90°,
下一篇 :
如图,△ABC中,∠C=90°,∠ABC=60
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题目简介
如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为()A.6cmB.8cmC.10cmD.12cm-数学
题目详情
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