Geometry crossword puzzle

123456789101112131415
Across
  1. 2. middle of a line segment
  2. 5. - Measurement of a plane angle
  3. 6. - figures that have the same size and shape
  4. 9. - straight lines that don't intersect
  5. 11. - A straight line that cuts an angle or segment in half
  6. 14. - A-line that intersects two or more lines
  7. 15. - triangle which all 3-sized have the same length
Down
  1. 1. - two angles that add up to 90 degrees
  2. 3. - the inner side of an angle
  3. 4. - a triangle that has 2 sides of equal length
  4. 7. - when two lines cross
  5. 8. - two angles that sum up to 180 degrees
  6. 10. - figure formed by 2 rays, sharing common endpoint.
  7. 12. - degree larger than 90 degrees
  8. 13. - a transformation of an object by creating a mirror object of it on the other side of the line