geometry crossword puzzle

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Across
  1. 1. an angle at the center of a circle. the apex is the center and the legs connect in distinct points.
  2. 3. straight lines that make a 90-degree angle. they are exactly vertical.
  3. 7. a straight line halfway across a circle. it's half of the circle's diameter
  4. 11. when points of a figure move over a certain distance. the points can either move left, right, up, or down.
  5. 12. an angle that's in a circle and formed by two chords with a common endpoint on the circle. this angle is formed in the interior of a circle.
  6. 16. equal to the adjacent side of the triangle divided by the hypotenuse. used for finding unknown angles or sides in a right triangle.
  7. 18. a straight line completely across, but enclosed in a circle. it's twice the circle's radius.
  8. 19. a type of line that intersects systems of lines. it passes through two lines at two distinct points in the same plane.
Down
  1. 1. when objects are of the same size or same shape or both. what you can call two similar figures.
  2. 2. equal to the opposite side of the triangle divided by the adjacent side. used in finding a missing angle or side in a right triangle.
  3. 4. the exact middle point of a line segment. it bisects the segment.
  4. 5. a triangle with two sides of equal length. only two sides have the same measurements, the other does not.
  5. 6. the flat space an object occupies. the amount of space within a perimeter.
  6. 8. it's the amount of space an object takes up. it's the space of a three-dimensional figure.
  7. 9. a mirror image of a shape. a translated point in a figure is equally distanced from the original figure.
  8. 10. the general description of any movement between figures on a graph. it could mean the figure moves, reflects, or translates.
  9. 13. a straight line that cuts a circle into two parts. the line intersects that circle at exactly two points.
  10. 14. the process of moving points on a figure around. it could move around a specific point on a coordinate plane or the origin.
  11. 15. equal to the opposite side of the triangle divided by the hypotenuse. used to find an unknown angle or side of a right triangle.
  12. 17. coplanar lines that never intersect. they are side by side and continuously have the same distance between them.