Can we have two acute angles whose sum is
a straight angle ? Why or why not ?

Can we have two acute angles whose sum is a right angle ? Why or why not ?

Can we have two acute angles whose sum is an acute angle ? Why or why not ?

Can we have two acute angles whose sum is a reflex angle ? Why or why not ?

Can we have two acute angles whose sum is an obtuse angle ? Why or why not ?

Can we have two obtuse angles whose sum is a reflex angle ? Why or why not ?

Can we have two obtuse angles whose sum is a complete angle ? Why or why not ?

Can two acute angles from a linear pair?

Two acute angles are congruent

Can a triangle have two obtuse angles? Why?

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 _______.