如图,AB是⊙O的弦,BC与⊙O相切于点B,连接OA,OB,若∠ABC=65°,则∠A等于( )
![](https://img.xkw.com/dksih/QBM/2018/1/3/1852586795352064/1856476723912704/STEM/98e57839fb734a8c8331cfc7e9b96394.png?resizew=128)
![](https://img.xkw.com/dksih/QBM/2018/1/3/1852586795352064/1856476723912704/STEM/98e57839fb734a8c8331cfc7e9b96394.png?resizew=128)
A.20° | B.25° | C.35° | D.75° |
更新时间:2018-01-09 07:54:28
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【推荐1】如图,
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的两条弦,且
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A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
|
适中
(0.65)
【推荐2】如图,在△ABC中,∠A=50°,内切圆I与边BC、CA、AB分别相切于点D、E、F,则∠EDF的度数为( )
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A.55° | B.60° | C.65° | D.70° |
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