AMC 10 2000 Problem 10

The sides of a triangle with positive area have lengths 4,6 , and x. The sides of a second triangle with positive area have lengths 4,6 , and y. What is the smallest positive number that is not a possible value of |x-y| ?

Answer Choices
A. 2
B. 4
C. 6
D. 8
E. 10