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> I为△ABC的内心,如果∠ABC+∠ACB=100°,那么∠BIC等于[]A.80°B.100°C.130°D.160°-九年级数学
I为△ABC的内心,如果∠ABC+∠ACB=100°,那么∠BIC等于[]A.80°B.100°C.130°D.160°-九年级数学
题目简介
I为△ABC的内心,如果∠ABC+∠ACB=100°,那么∠BIC等于[]A.80°B.100°C.130°D.160°-九年级数学
题目详情
I为△ABC的内心,如果∠ABC+∠ACB=100°,那么∠BIC等于
[ ]
A. 80°
B. 100°
C. 130°
D. 160°
题型:单选题
难度:中档
来源: 专项题
答案
C
上一篇 :
若O为△ABC的外心,且∠BOC=60°
下一篇 :
如果点O为△ABC的外心,∠BOC=70
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题目简介
I为△ABC的内心,如果∠ABC+∠ACB=100°,那么∠BIC等于[]A.80°B.100°C.130°D.160°-九年级数学
题目详情
B. 100°
C. 130°
D. 160°
答案