meow [7/6 homework choice 1]

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Across
  1. 5. two angles that do NOT share a common side
  2. 7. a math sentence
  3. 8. uppermost layer of something
  4. 9. a closed two dimensional shape
  5. 13. two side by side angles which share a common side
  6. 17. used to help simplify algebra terms and equations
  7. 18. a pair of angles that have the same vertex and are on opposite sides of two intersecting lines.
Down
  1. 1. when the sum of two angles is equal to 90°
  2. 2. a math statement which is part of a "math sentence"
  3. 3. a mathematical relationship expressed in symbols
  4. 4. math tool, used to measure degrees of an angle
  5. 6. an angle of 180°
  6. 10. the space between two intersecting lines
  7. 11. angles which sum up to 180°
  8. 12. the lowest part of something, the foundation of a building
  9. 14. examples include letters, such as x, p or g
  10. 15. a 90° angle in a corner
  11. 16. the amount of space inside of a shape