Sierra Bell

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Across
  1. 1. A line that appears to proceed from left to right
  2. 4. Any straight line segment that passes through the center of a circle and the endpoints lie on the circle
  3. 8. Lines that appear to go up and down
  4. 9. The minimum number of coordinates needed to specify any point within it
  5. 10. Method of graphic representation of three-dimensional objects
  6. 12. Any triangle that is not a right triangle
  7. 13. A triangle in which all three sides are equal
  8. 14. The language of industry
  9. 15. Line to show the visible edges of an object
Down
  1. 2. Method of projection in which an object is depicted or a surface mapped using parallel lines to project its shape onto a plane
  2. 3. A line segment joining the center of a circle with any point on the circle
  3. 5. Figure formed by two rays
  4. 6. Lines that intersect at a right angle
  5. 7. Polygon with 8 sides
  6. 11. A test to determine if a curve is a relation or graph of a function