How many noncongruent triangles are there with perimeter equal to 11, and with integer side lengths?
+1008 Basically how much congruent triplets of integers adding up to 11.
1-5-5
2-5-4
stuff like that
As HELPMEE...EEE says, a triangle's smaller two lengths must be greater than the largest.
And you can do the rest!
If you don't understand anything feel free to ask.
+934 The sum of the two smaller legs has to be greater than the largest leg in order for it to be a possible triangle.
*Take note of this when listing out the traingles.
