Answer:
the answer is D. 5, 10, 15
y = 4
Step-by-step explanation:
If I'm correct, y literally equals 4. Subtracting 0 by 4 literally ends up being 4. I hope this is enough.
Answer: obtuse angle
Step-by-step explanation
Acute angle less than 90
Obtuse: more than 90
Right: exactly 90