配套习题- 列表法巧定三角形的个数（3） -【青果学院】

1/5单选题

难度：

1.一个三角形的周长是个偶数，其中的两边长为5和2008，则满足条件的三角形有（）个

A	4
B	5
C	6
D	7

正确答案：QQ==

6Kej77ya6K6+56ys5LiJ6L655piveO+8jOWImTIwMDPvvJx477ycMjAxMy4gPGJyPuKItHg9MjAwNOaIljIwMDXmiJYyMDA25oiWMjAwN+aIljIwMDjmiJYyMDA55oiWMjAxMOaIljIwMTHmiJYyMDEyLiA8YnI+6ICM5LiJ6KeS5b2i55qE5ZGo6ZW/5piv5YG25pWw77yMPGJyPuWboOiAjHg9MjAwNeaIljIwMDfmiJYyMDA55oiWMjAxMe+8jDxicj7mu6HotrPmnaHku7bnmoTkuInop5LlvaLlhbHmnIk05Liq

2/5单选题

难度：

2.周长为24，各边长互不相等且都是整数的三角形共有（　　）个

A	7
B	8
C	9
D	10

正确答案：QQ==

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

3/5单选题

难度：

3.周长为30，各边长互不相等且都是整数的三角形共有（）个？

A	10
B	11
C	12
D	13

正确答案：Qw==

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

4/5单选题

难度：

4.设不等边三角形的各边之长都是整数，周长小于13，那么这种三角形的个数共有（）个

A	2
B	3
C	4
D	5

正确答案：Qg==

6Kej77ya5LiJ6KeS5b2i55qE5ZGo6ZW/5bCP5LqOMTPvvIzkuJTkuI3nrYnovrnkuInop5LlvaLnmoTlkITovrnkuYvplb/pg73mmK/mlbTmlbA8YnI+5YiZ5YW25Lit55qE5Lu75L2V5LiA6L655LiN6IO96LaF6L+HNTxicj7liJnov5nmoLfnmoTkuInop5LlvaLlhbHmnIkz77yMNO+8jDLvvJs077yMNe+8jDLvvJsz77yMNO+8jDXkuInkuKo=

5/5单选题

难度：

5.周长不超过10，各边长是整数且互不重合的三角形共有（　　）个

A	9
B	10
C	11
D	12

正确答案：Qw==

6Kej77ya562J6L655LiJ6KeS5b2i77yaMeOAgTHjgIEx5YWxMeS4qu+8jDxicj7nrYnohbDkuInop5LlvaLvvJoy44CBMuOAgTHvvIwy44CBMuOAgTPvvIwz44CBM+OAgTHvvIwz44CBM+OAgTLvvIwz44CBM+OAgTTvvIw044CBNOOAgTHvvIw044CBNOOAgTLlhbE35Liq77yMPGJyPuWFtuWug+S4ieinkuW9ou+8mjLjgIEz44CBNO+8mzLjgIEy44CBMuWSjDPjgIEz44CBM+WFsTPkuKrvvIw8YnI+5omA5Lul5YWxMSs3KzM9MTHkuKouIA==