Zoe's Math Crossword

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Across
  1. 5. angles that sum up to 90 degrees
  2. 8. angles that sum up to 180 degrees
  3. 9. when angles or shapes are equal
  4. 11. an angle less than 90 degrees
  5. 12. angles with a common vertex and side but no common interior points
Down
  1. 1. an angle equal to 90 degrees
  2. 2. a flipped fraction
  3. 3. the length of a line that encloses a two dimensional shape
  4. 4. the number that when cubed produces a given number
  5. 6. when two lines meet at a right angle
  6. 7. a line that intersects other lines
  7. 10. all sides of a triangle are different lengths