配套习题- 列表法巧定三角形的个数（1） -【青果学院】

1/5单选题

难度：

1.已知三角形的三边a，b，c的长都是整数，且a≤b<c，如果b=5，则这样的三角形共有（）个

A	8
B	9
C	10
D	11

正确答案：Qw==

6Kej77yaYj0177yM5Y+I4oi1Yy1iJmx0O2HiiaRi77yM5LiJ6KeS5b2i55qE5LiJ6L65Ye+8jGLvvIxj55qE6ZW/6YO95piv5pW05pWw77yM5omA5LulMSZsdDth4omkNTxicj7iiLRhPTLvvIwz77yMNO+8jDU8YnI+5b2TYT0y5pe277yMNe+8nGPvvJw377yM5q2k5pe277yMYz0277ybPGJyPuW9k2E9M+aXtu+8jDXvvJxj77ycOO+8jOatpOaXtu+8jGM9Nu+8jDfvvJs8YnI+5b2TYT005pe277yMNe+8nGPvvJw577yM5q2k5pe277yMYz0277yMN++8jDjvvJs8YnI+5b2TYT015pe277yMNe+8nGPvvJwxMO+8jOatpOaXtu+8jGM9Nu+8jDfvvIw477yMOe+8mzxicj7iiLTkuIDlhbHmnIkxKzIrMys0PTEw5LiqLiA=

2/5单选题

难度：

2.如果一个三角形的三边长都是整数，且其中的一边长是3（不是最短边），那么这样的三角形共有（）个

A	4
B	5
C	6
D	7

正确答案：Qg==

6Kej77ya5b2TM+aYr+acgOWkp+i+ueaXtu+8jOaJgOacieeahOWPr+iDveS4uu+8mjMsMywz77ybMywzLDLvvJszLDMsMe+8mzMsMiwyPGJyPuW9kzPmmK/mrKHplb/ovrnml7bvvIzmiYDmnInlj6/og73vvJoyLDMsNCA8YnI+5omA5Lul5YWx5pyJNeenjeaDheWGtQ==

3/5单选题

难度：

3.已知三角形的三边长a、b、c都是整数，且a≤b<c，若b=6，则这样的三角形有（）个

A	14
B	15
C	16
D	17

正确答案：Qg==

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

4/5单选题

难度：

4.已知△ABC三边a，b，c的长都是整数，且a≤b≤c，如果b=25，则符合条件的三角形共有（　　）个

A	124
B	225
C	300
D	325

正确答案：RA==

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

5/5单选题

难度：

5.已知三角形的三边的长a、b、c都是整数，且a≤b≤c，若b=7，则这样的三角形有（）个

A	21
B	24
C	25
D	28

正确答案：RA==

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