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How many non-congruent triangles with only integer side lengths have a perimeter of 15 units?

How many non-congruent triangles with only integer side lengths have a perimeter of 15 units?
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3 votes
How many non-congruent triangles with only integer side lengths have a perimeter of 15 units?

User Ben Wilhelm
by
8.6k points

1 Answer

7 votes
1 7 7
2 6 7
3 6 6
3 5 7
4 5 6
4 4 7
six triangles


User Evalds Urtans
by
7.4k points
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