Shape and Space Words

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Across
  1. 3. A line that cuts into two equal parts.
  2. 5. A triangle with two equal angles and sides.
  3. 7. The amount of turn between two lines that meet at a point.
  4. 8. Two lines that never meet.
Down
  1. 1. A line crossing from one side of a circle to the other, passing through the centre.
  2. 2. A line crossing from one side of circle to the other.
  3. 4. A triangle with three equal angles and sides.
  4. 6. A triangle with no special features