If two angles are supplementary then one angle is acute and one angle is obtuse. e.g. It will not satisfy the property of the supplementary angles when we add obtuse angles. Never true. If two angles are supplementary angles, then it is not necessary that they are always obtuse angles. By the definition of obtuse angles, the angles that measure greater than 90° are obtuse. True/False: Complementary angles form a right angle 51. A supplementary angle adds up to 180 degrees. Thus, if the angle is acute, its supplementary angle would be obtuse. If the two angles are both obtuse, they must both be greater than 90 degrees. If you add two obtuse angles, the sum will be greater than 180°. False. (ii) Two acute angles can form a linear pair. The obtuse angle can be anywhere from 179 degrees to 91 degrees, aslong as the other angle together adds up to 180 degrees. True or false. Supplementary angle is one which when added to the angle makes 180 degrees. Two angles are complementary. (iv) Two adjacent angles always form a linear pair. B) There are three types of angles: Acute, straight, and right. Right angles are neither acute nor obtuse. - .-- (iii) Two obtuse angles can form a linear pair. If two angles are vertical angles, … Two angles are supplementary. Always true. If two angles are supplementary then one must be acute and the other obtuse or both right angles. It also needs two angles. (v) Pair of vertically opposite angles are always supplementary. Example: 110° + 95° = 205° which is not a supplementary angle… Both angles could be right angles. Thank you, Ali Found 2 solutions by aaaaaaaa, checkley71: An acute angle measures less than 90 degrees, and obtuse measures more than 90 degrees. If two angles are obtuse, then they can be vertical angles. A) Supplementary angles have angles measures that add up to 180 degrees . If angle A and angle B are supplementary angles, then we can write. When these two angles are added together, the resulting angle must be greater than 180 degrees. False. False, to be supplementary, the angles must add up to be 180 degrees. One of the angles is 17°, what is the measure of the other angle? True/False: Supplementary angles form a straight angle 52. Question 53853: Hi can you please tell me if this is true of false. Question 878435: if angle one and angle two are supplementary then one of the angles is Obtuse true or false Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website! 53. The given statement is false as obtuse angle are also a type of angle. 1 two obtuse angles can be supplementary 2. two right angles can from a linear pair - 33351843 60° and 120° are supplementary angles but both are not obtuse. Although it is possible for an acute and an obtuse … If two angles are supplementary, then they must form a straight angle. 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