Acute, , obtuse, straight angles - grade 4, Practice identifying acute, right, obtuse, and straight angles.. Obtuse angles | examples obtuse angles | math, In other words, an angle whose measure is greater than a right angle and less than a straight angle, is said to be an obtuse angle. obtuse angles are seen very often. Geometry – 4th grade - teachers' cafe, Print this post. teaching 4.g.a.1 .2 – draw points, lines, line segments, rays, angles (right, acute, obtuse) & perpendicular & parallel lines – classify two.

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