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歡迎您訪問數學考題練習:小明要從長度分別為5,6,11,16的四根小木!

數學考題練習:小明要從長度分別為5,6,11,16的四根小木

更新時間:2024-01-12 16:27:45作者:貝語網校

小明要從長度分別為5,6,11,16的四根小木棒中選出三根擺成一個三角形,那么他選的三根木棒的長度分別是

A.5,6,11

B.5,6,16

C.5,11,16

D.6,11,16

試題答案

D

試題解析

根據在三角形中任意兩邊之和大于第三邊,任意兩邊之差小于第三邊.即可求解.

解答:從5,6,11,16的四根小木棒中選出三根,

可以有的結果是:5,6,11;5,6,16;6,11,16三種情況,

根據三角形三邊關系定理,能構成三角形的只有6,11,16一種情況.

故選D.

點評:本題利用了在三角形中兩邊之和大于第三邊求解.

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