Measurement

12345678910111213141516171819
Across
  1. 3. A rule used to find lengths in right triangles.
  2. 5. A number associated with circles.
  3. 9. The area of this shape is half the product of its diagonals.
  4. 11. Area is bh.
  5. 12. A region of a circle bounded by two radii and an arc
  6. 13. 10 millimetres
  7. 14. Another name for the height of a triangle.
  8. 15. A shape made up of other shapes.
  9. 16. 1000 millimetres
  10. 18. Distance around a circle.
  11. 19. A square 100m by 100m
Down
  1. 1. Line segment from two points on the circle through the centre.
  2. 2. Part of the circumference.
  3. 4. 1000 metres
  4. 6. A quarter of a circle
  5. 7. Area is h/2 (a + b)
  6. 8. Line segment from centre to a point on the circle.
  7. 10. Half a circle
  8. 17. There are 360 of these in a circle.