Determine if the given side lengths could be used to form a unique triangle, many different triangles, or no triangles.

Question

​​20.2 in., 11 in., 8.2 in.
A.unique triangle
B.many different triangles
C.no triangles

Answer 1

I choose A.

Answer 2

11 + 8.2= 19.2
that is not long enough to reach from 0 to 20.1 even if they are sraight along the long side, fails.

Answer 3

same question here:
https://www.jiskha.com/questions/1820925/determine-if-the-given-side-lengths-could-be-used-to-form-a-unique-triangle-many