Geometry Crossword

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Across
  1. 3. The segment joining one vertex of a triangle to the midpoint of the side opposite the vertex. Creates two equal segments from the base.
  2. 4. Created by two rays that share a common endpoint. They are in all polygons.
  3. 5. Figures that have the same shape but not necessarily the same size. ______ can be kept by dilation, rotation, translation, and reflection.
  4. 8. A transformation that "slides" each point of a figure the same distance in the same direction. This is a rigid transformation.
  5. 11. An equation which states that two ratios are equal. Usually solved by cross multiplying.
  6. 12. A plane figure with all points the same distance from a center. Has no sides.
  7. 15. In a right triangle, the square of the length of the hypotenuse equals the sum of the squares of the lengths of the legs. The equation is a2 + b2 = c2
  8. 16. The distance across a circle through its center. The line segment that includes the center and whose endpoints lie on the circle.
  9. 18. The set of all possible outcomes from an experiment. The sample space is made smaller in conditional probability.
  10. 19. Transformation that changes the size of a figure, but not the shape. Keeps similarity, but not congruence.
  11. 20. The point of concurrency of the medians of a triangle. It is the center of a triangle.
Down
  1. 1. Divides a segment or angle into two equal parts. Usually found through construction.
  2. 2. Polygons that have the same size, shape and measure. Two figures are ____ if all of their corresponding measures are equal.
  3. 6. Angles that have the same relative positions in geometric figures.
  4. 7. Two nonadjacent angles formed by intersecting lines or segments. These angles are always congruent.
  5. 9. A portion of the circumference of a circle. Found by multiplying the circumference by the arc over 360.
  6. 10. Two angles that add up to 90 degrees. Present in all right triangles.
  7. 13. Two or more events in which the outcome of one event affects the outcome of the other event or events. Usually on the y axis.
  8. 14. A line that crosses two or more parallel lines. Creates alternate interior angles, alternate exterior angles, complementary angles and etc.
  9. 17. The distance from the center of a circle to any point on the circle. Used in the equation to find the area of a circle.