Answer:
A
Step-by-step explanation:
Answer:
120
Step-by-step explanation:
Answer:

Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>let's solve:</h3>





The correct answer is right.
An acute one would have all three acute, while an obtuse one would have at least one obtuse angle.