Math

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Across
  1. 2. Having an outline or surface that curves inward like the interior of a circle or shape
  2. 4. The point where intersecting lines meet
  3. 7. The extent or measurement of a surface or piece of land
  4. 8. The external form or appearance characteristic of someone or something; the outline of an area or figure
Down
  1. 1. Use powers of ten to make big or small number spear smaller
  2. 3. An instrument for measuring the extent and characteristics of a person's field of vision
  3. 5. The quality of being made up of exactly similar parts facing each other or around an axis
  4. 6. Figures identical in form
  5. 9. The space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet