Geometry

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Across
  1. 2. — The distance from the centre of a circle to any point on the circle.
  2. 4. Lines — Lines that meet at a right angle (90°).
  3. 6. Angle — An angle smaller than 90°.
  4. 8. — The point where two lines, rays, or edges meet.
  5. 10. — The space between two rays or lines that meet at a point.
  6. 12. Lines — Lines that never meet, no matter how far they are extended.
Down
  1. 1. — The distance around the outside of a circle.
  2. 3. — A polygon with four sides.
  3. 5. — The amount of space inside a 2D shape.
  4. 7. Angle — An angle larger than 90° but smaller than 180°.
  5. 9. — A line that passes through the centre of a circle and touches both sides.
  6. 11. — A closed shape made of straight sides.