Angles and Sides

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Across
  1. 3. Number of degrees in 5 right angles + number of angles in 5 triangles
  2. 4. Number of angles in 6 octagons
  3. 6. Number of edges on seven 50p coins
  4. 8. Number of sides +number of angles in ½ gross of triangles
  5. 10. Number of degrees + number of sides of a triangle
  6. 11. Number of degrees in 8 parallelograms
  7. 12. Number of degrees in a circle
Down
  1. 1. (Number of sides of a rhombus multiplied by number of degrees in a square) + Number of sides of a square
  2. 2. Number of degrees in a kite - number of angles in 23 triangles +2
  3. 5. Number of sides in 12 heptagons
  4. 6. Number of pairs of parallel lines in 21 parallelograms
  5. 7. Number of sides in a triangle multiplied by number of sides in a square x number of degrees in a rectangle
  6. 9. (Number of sides in a pentagon + number of angles in a hexagon) multiplied by number of angles in a pentagon multiplied by number of sides in a hexagon.
  7. 13. Number of degrees in an angle of an equilateral triangle + a pair