MATH!!!!!

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Across
  1. 2. angles formed on the outside cut by a transversal
  2. 4. two angles whose sum equals 90 degrees
  3. 7. a line that cuts through two or more lines (usually parallel)
  4. 9. to add two or more numbers or like terms into one as a way of simplifying an expression.
  5. 11. two lines on the same plane that do not meet and are equal distance apart.
  6. 12. A figure consisting of the union of two rays that share a common endpoint.
  7. 13. a unit of measure based on dividing a circle into 360 equal parts, and used to measure angles, arcs, and rotations.
Down
  1. 1. are distinct lines lying the same plane that never intersect each other and have the same slope.
  2. 3. angles formed on different sides of a transversal
  3. 5. two angles whose sum equals 180 degrees.
  4. 6. The angles that occupy the same relative position at each intersection of two lines.
  5. 8. angles formed on the inside cut by a transversal
  6. 10. algebraic expressions in which variables and exponents are the same.