Acute, Right and obtuse Angles Acute Angle These angles are smaller than 90 degrees. Right Angle Right angles are equal to 90 degrees. Obtuse Angle An obtuse angle is greater than 90 degrees…. Register Login Contact us RelatedGrade 4 Numeracy Sample May 2019Grade 4 Mathematics Performance Task May 2019Adding two digit numbers mentallyYou are doing well. Tell your friend, it is so good!