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歡迎您訪問(wèn)數(shù)學(xué)考題練習(xí):如圖,AB是⊙O的直徑,CD是弦,CD⊥AB,!

數(shù)學(xué)考題練習(xí):如圖,AB是⊙O的直徑,CD是弦,CD⊥AB,

更新時(shí)間:2024-01-12 16:43:01作者:貝語(yǔ)網(wǎng)校

如圖,AB是⊙O的直徑,CD是弦,CD⊥AB,垂足為E,則下列結(jié)論不一定成立的是

A.CE=DE

B.OE=BE

C.=

D.=

試題答案

B

試題解析

利用垂徑定理判斷.

解答:根據(jù)垂直于弦的直徑平分這條弦,并且平分這條弦所對(duì)的兩條弧,可知A、C、D都成立.

故選B.

點(diǎn)評(píng):本題主要考查了垂直于弦的直徑平分這條弦,并且平分這條弦所對(duì)的兩條弧的性質(zhì).

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