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

sometimes true

Step-by-step explanation:

Let take some examples:

40° and 30° are acute angles

40° + 30° = 70°, which is an acute angle

60° and 30° are acute angles

60° + 30° = 90°, which is a right angle

50° and 70° are acute angles

50° + 70° = 120°, which is an obtuse angle.

Conclusion: the sum of two acute angles is sometimes an acute angle.

Sometimes true

Step-by-step explanation:

acute angles are less than 90 degrees. However, they can sometimes euqal obtuse angles. For example, two acute angles measures of 70 degrees and 30 degrees are both acute. Add them together they equal 100 degrees, which is obtuse.