Angle properties crossword

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Across
  1. 3. a flat geometric figure that has four sides and four angles always add up to 360 ̊
  2. 8. Most common unit of measurement of angle
  3. 9. Two angles contained within the Z formed when a line crosses two parallel lines
  4. 10. A triangle that has two sides of equal length
  5. 14. An instrument used to measure angle
Down
  1. 1. Lines that are an equal distance apart at every point along them
  2. 2. A triangle with all sides of different lengths
  3. 4. a flat geometric figure that has three sides and three angles always add up to 180 ̊
  4. 5. A measure of turn
  5. 6. when two straight lines cross, the angles opposite each other are the same size.
  6. 7. Angles about a point add up to 360 ̊(a complete _______)
  7. 11. Angles adding up to 180 ̊
  8. 12. All sides of the triangle are equal
  9. 13. An angle in the same relative position as another. It can be found by looking for and F formed.