+167 A triangle can be formed having side lengths 4, 5, and 8. It is impossible, however, to construct a triangle with side lengths 4, 5, and 10. Using the side lengths 2, 3, 5, 7, and 11, how many different triangles with exactly two equal sides can be formed?
+128407
2, 3, 5, 7, and 11
The triangles will be isosceles.....
The possible triangles are :
2 2 3 3 3 2 5 5 2 7 7 2 11 11 2
3 3 5 5 5 3 7 7 3 11 11 3
5 5 7 7 7 5 11 11 5
7 7 11 11 11 7
So...14 triangles are possible
+2440 Yes, guest, you are correct. Thanks for pointing that out. Cphill's answer is right.
