Maths Holiday Homework- Crossword

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Across
  1. 3. Are 90 degrees
  2. 4. Opposite sides are parallel and equal.
  3. 6. Each angle is 90 degrees and all sides are equal.
Down
  1. 1. A four-sided Polygon
  2. 2. A Greek mathematician known for his theory of triangles
  3. 4. A simple closed figure made up of line segments.
  4. 5. The property stating that the sum of all angles in a triangle is 180 degrees.