Triangles

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Across
  1. 1. a triangle with exactly 2 congruent sides
  2. 4. a two-dimensional shape with 3 sides
  3. 5. a triangle whose sides are all of different lengths
Down
  1. 2. a triangle with all sides the same length
  2. 3. a triangle with 1 right angle (1 angle that is 90degrees)