Which angle in triangle xyz has the largest measure?

A.

Step-by-step explanation:

We have been given measure of three sides of a triangle. We are asked to determine, which angle has the largest measure.

We know that the side of triangle corresponds to its opposite angle. The angle opposite to smallest side will have smallest measure and angle opposite to largest side will have largest measure.

We can see that the measure of largest side of our given triangle is 9 and it is opposite to angle x, therefore, has the largest measure and option A is the correct choice.