The sum of two acute angles is an obtuse angle. always, sometimes, or never true.

sometimes

Sometimes

Step-by-step explanation:

We can have two acute angles, 20 and 30, 20+30=50, which is still acute,

We can have two acute angles, 45 and 45, 45+45=90, which is neither acute nor obtuse.

We can have two acute angles, 80 and 80, 80+80=160, which is obtuse.