Answer:
The answer is D.
Step-by-step explanation:
Lets make an equation for this. Remember, that the sum of the interiors of a triangle is 180 degrees. 2y will represent the two angles, and we already have 60 degrees as one of the measures.
Equation: 2y+60=180
Now, simply subtract 60 from both sides
2y+60-60=180-60
This gives us 2y=120
Now divide both sides by 2
2y/2=120/2
y=60
So the answer is D. The value of y is 60 degrees.
