Geometry Word Puzzle

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Across
  1. 2. a polygon with three sides and three angles, a basic shape
  2. 6. two angles with a sum of 180 degrees.
  3. 9. a segment that divides a segment into two parts, and is in the middle
  4. 11. two lines that intersect at a right angle
  5. 13. A type of triangle that has three angles that are different
  6. 15. a shape with four sides and four corners
  7. 18. is a saying to remember triangle terms for sine, cosine, and tangent
  8. 19. A measure that refers to the steepness of a line, usually the x in an equation
  9. 20. is used to describe the same shape and sizeecifically.
Down
  1. 1. measures the amount of a three-dimensional object and how much space it takes up
  2. 3. A figure formed by two lines creating a what?
  3. 4. a closed shape that is equal to 360.
  4. 5. A type of triangle that has three equal sides
  5. 7. quadrilateral with two pairs of opposite sides that are parallel in length
  6. 8. a section of a circle that is cut off and creates an arc
  7. 10. an equation that helps you figure out a missing side of a triangle and squares it
  8. 12. a triangle face with a square base that is a three-dimensional object
  9. 14. geometry term that indicates a chance or likelihood of something occurring
  10. 16. distance or edge of a circle, the perimeter of a circle
  11. 17. A type of triangle that least 2 equal sides are equal