geometry

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Across
  1. 3. A triangle with three equal sides and three equal angles
  2. 5. A shape that has four equal sides and 90 degree angles.
  3. 6. A line that extends from one side of a circle to the other and goes through the mid-point.
  4. 7. A shape that has angles that add up to 180 degrees.
  5. 9. An instrument used to measure angles.
  6. 10. A shape with six sides.
Down
  1. 1. This shape has 2 pairs of equal adjacent sides and 1 pair of equal opposite angles.
  2. 2. Lines that are always the same distance apart no matter how long they are.
  3. 4. Any shape with four sides.
  4. 8. A shape with four equal sides, opposite parallel lines and opposite equal angles.