car and Chinese granary

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Across
  1. 3. a point equidistant from the ends of a line
  2. 5. the length of a line between the centre and circumference of a line
  3. 10. a quadrilateral of a pair of parallel line
  4. 11. a angle of 90°
  5. 12. two angles have a vertex
  6. 13. a angle is less than 90°
  7. 14. the side opposite the right angle in a right triangle
Down
  1. 1. a angle is bigger than 90° but less than 180°
  2. 2. the distance around a triangle
  3. 4. a quadrilateral of all angels equal to 90° and all sides are equal
  4. 6. four sides are equal but not a square
  5. 7. a triangle have one right angle
  6. 8. the length of a straight line passing through the centre of a circle
  7. 9. a quadrilateral of four ninety-degree angles,two pairs of lines have different length
  8. 14. distance from the base of a quadrilateral to the top