If the lengths of two of the sides of a triangle are 9 and 10, which of the following could be the length of the third side? Ⅰ.

admin2012-01-15 107

问题 If the lengths of two of the sides of a triangle are 9 and 10, which of the following could be the length of the third side? Ⅰ. 1 Ⅱ. 11 Ⅲ. 21

选项 A、None
B、Ⅰ only
C、Ⅱ only
D、Ⅰ and Ⅱ only
E、Ⅰ, Ⅱ, and Ⅲ