Triangles and Angles

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Across
  1. 1. A triangle with an angle greater then 90 degrees.
  2. 3. A shape formed by 2 rays that meet at a vertex.
  3. 5. Mathematician known for his theorem about right angle triangles.
Down
  1. 2. A triangle with three equal sides and three 60 degree angles.
  2. 4. A triangle with a 90 degree angle.
  3. 6. A triangle in which all angles are less than 90 degrees.