If the sum of the measure of two angles is equal to the sum of a right angle, then both angles are [[1]].

If the sum of the measure of two angles is equal to the sum of a right angle, then both angles are acute angles. For example, consider two angles 30^o and 60^o, both 30^o and 60^o are acute angles, but their sum is:

30^o + 60^o = 90^o