An acute angle is, an angle less than 90∘, an angle more than 90∘, an angle more than 180∘, an angle more than 360∘, 90∘, An obtuse angle is, an angle less than 90∘, an angle more than 90∘, an angle more than 180∘, an angle more than 360∘, 90∘, A reflex angle is, an angle less than 90∘, an angle more than 90∘, an angle more than 180∘, an angle more than 360∘, 90∘, A right angle is, an angle less than 90∘, an angle more than 90∘, an angle more than 180∘, an angle more than 360∘, 90∘, Angles in a triangle add up to, 360∘, 240∘, 70∘, 90∘, 180∘, Angles in a quadrilateral add up to, 360∘, 240∘, 70∘, 90∘, 180∘, Angles on a straight line add up to, 360∘, 240∘, 70∘, 90∘, 180∘, Angles in a right angle add up to, 360∘, 240∘, 70∘, 90∘, 180∘

Angle measures

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