Which of the following cannot be the sum of two acute angles?
60o
90o
150o
190o
Since measure of acute angles are less than 90o, so the sum of two acute angles cannot be 190o.
Question 12 If the sum of two angles is equal to an obtuse angle, then which of the following is not possible? a) One obtuse angle and one acute angle b) One right angle and one acute angle c) Two acute angles d) Two right angles