Posted by **Cheryl** on Wednesday, February 9, 2011 at 11:48am.

Determine which set of numbers can be the lengths of the sides of a triangle.

a. 13, 10, 16

b. 1, 2, 3

c. 5.2, 11, 4.9

d. 208, 9, 219

I believe the answer is a. 13, 10, 16. Is this right?

- Geometry -
**drwls**, Wednesday, February 9, 2011 at 12:18pm
The sum of the two shortest sides must exceed the length of the long side, AND

The difference between the lengths of the shortest sides must be less than the length of the longest side.

Yes, only choice a can be a triangle

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