The option (D) Can't be determined is correct because we cannot determine the value of b because there are two unknowns b and y.
What is the triangle?
The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
We have a triangle shown in the picture.
From the triangle first we can find the value of a:
a = 180 - (50 + 45)
a = 85 degree
We cannot determine the value of b because there are two unknowns b and y.
Thus, the option (D) Can't be determined is correct because we cannot determine the value of b because there are two unknowns b and y.
Learn more about the triangle here:
brainly.com/question/25813512
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