Geometry 1

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Across
  1. 2. how many times the diameter fits around the outside of the circle. The word for about 3.14
  2. 5. a line that goes from the middle of the circle to the edge
  3. 7. This shape has 360 degrees inside of it
  4. 9. a line that goes through the middle of a circle from one edge to the other
  5. 11. a triangle with all angles less than 90*
  6. 12. a 4-sided shape
  7. 13. a triangle with an angle greater than 90*
Down
  1. 1. distance around the outside of the circle
  2. 3. pi times radius squared = ____ of a circle
  3. 4. a little square on a triangle corner means it is a _____ angle, meaning 90 degrees
  4. 6. this shape only has 180 degrees inside of it. It's half of a quadrilateral
  5. 8. a line that goes from one edge of the circle to the other, but doesn't have to cross the middle
  6. 10. to find the area of a triangle, multiply base times height and ______ it by two