Which of these is the right angle?, , , , Which one of these is NOT an acute angle?, , , , , An obtuse angle is less than 90°, True , False, Name the angle , Acute , Right angle, Obtuse, Straight angle, Name the angle, Acute, Right angle, Obtuse, Reflex, Which one of these is an obtuse angle?, , , , , Which one of these is a stright angle?, , , , , Name the angle, Straight angle , Obtuse , Right angle, Acute , An acute angle is less than 90º, True , False, Which triangle has a right angle?, , , .

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