One straight angle is equivalent to the sum of two right angles.
Fill in the blanks with acute, obtuse, right or straight:
(a) An angle whose measure is less than that of a right angle is _______.
(b) An angle whose measure is greater than that of a right angle is _______.
(c) An angle whose measure is the sum of the measures of two right angles is _______.
(d) When the sum of the measures of two angles is that of a right angle, then each one of them is _______.
(e) When the sum of the measures of two angles is that of a straight angle, and if one of them is acute then the other should be _______.
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