Math puzzle

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Across
  1. 4. two angles whose measures add up to 90 degrees
  2. 5. two angles whose measure adds up to 180 degrees
  3. 6. adjacent over hypotenus
  4. 7. A line that cuts across any two other lines
  5. 8. A pair of opposite angles formed by two intersecting lines
Down
  1. 1. relations of the sides and angles of triangles and with the relevant functions of any angles
  2. 2. Lie in the same position at different points of the transversal
  3. 3. opposite over adjacent
  4. 5. opposite over hypotenuse