An angle whose measure is the sum of the measures of two right angles is

Q. Two angles the sum of whose measure is ${90}^{\circ }$ are called ______ angles.

Q.

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 _______.

Q.

Question 7 (c)

Fill in the blanks with acute, obtuse, right or straight:

An angle whose measure is the sum of the measures of two right angles is___

Q. Identify if the given statements are true or false.

(I) The sum of the measures of any two acute angles will always be the measure of an obtuse angle.

(II) The sum of the measures of any two obtuse angles will always be the measure of a reflex angle.

(III) Right angle is also an obtuse angle.

(IV) The sum of the measures of two right angles is the same as the measure of a straight angle.

Q. Which of the following statements are correct?

(I) The sum of the measures of any two acute angles will always be the measure of an obtuse angle.
(II) The sum of the measures of any two obtuse angles will always be the measure of a reflex angle.