geometry

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Across
  1. 3. A triangle that has 2 equal sides
  2. 6. You fly it when it is windy
  3. 7. What is the shape of the earth?
  4. 8. Half of a diameter
  5. 11. This theorem is used for a right triangle
  6. 13. What shape is half of a moon?
  7. 14. Ice cream
Down
  1. 1. the lateral area of a ___ is 2πrl
  2. 2. Triangle with 90 degree angle
  3. 4. A shape with all points equidistant from its center
  4. 5. The united states is in the Northern
  5. 7. Measurement of the steepness of a line
  6. 9. Portion of a circle between 2 points
  7. 10. What type of lines never intersect
  8. 12. The amount of space in a shape