This is a good question.

If the three sides of a triangle are specified, then there can only be one triangle shape that has those three sides. This is what is called congruence in geometry.

Moreover, the 3 sides are in a similar fashion of the triplets geometry : 3,4,5; 6,8,10 and so on (you should memorize for the test at very least the first 5 triplets)

3,4,5 means that the triangle has 90°,60°,30° angles.

If in our case the triplet is 6,8,

11 and x must be the greatest angle because it corresponds to the greatest side (

11 )

Therefore, if the triplet term 10 = 90° then 11 must be > 90°

A is the answer

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