Geometry Basics

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Across
  1. 2. describes points, lines, or shapes that all lie on the same single, flat surface, which is known as a plane
  2. 4. calculates the straight-line (Euclidean) distance between two points in a coordinate plane
  3. 6. a precise, dimensionless location in space, represented by a dot and labeled with a capital letter
  4. 8. any point, ray, line, or even a plane that divides a line segment into two equal, or congruent, parts
  5. 10. a flat, two-dimensional surface that extends infinitely in all directions without any thickness or boundary
  6. 14. two or more line segments that have the exact same length
  7. 15. a line, line segment, or ray that intersects a given line segment at its midpoint and forms a right angle (90 degrees) with it
  8. 17. two or more lines that lie in the same plane, always maintain the same distance from each other, and never intersect, regardless of how far they are extended
Down
  1. 1. the length of the segment representing the vector's change in the x-direction, often found by multiplying the vector's magnitude by the cosine of its angle with the horizontal axis
  2. 3. describes lines, rays, or segments that intersect to form a right angle, which is exactly 90 degrees
  3. 5. a one-dimensional object with infinite length, zero thickness, and no endpoints, extending infinitely in both directions
  4. 7. if three points A, B, and C are collinear, with point B situated between A and C, then the length of the segment AB plus the length of the segment BC equals the total length of segment AC (AB + BC = AC)
  5. 9. used to find the coordinates of the exact center point of a line segment on a coordinate plane
  6. 11. Segment a line segment that has a specific starting point and a specific ending point, and an arrow is drawn from the starting point to the ending point to indicate its direction
  7. 12. the part of a vector (or other quantity like force or displacement) that lies along the y-axis (vertical axis), perpendicular to the horizontal (x-axis)
  8. 13. three or more points that lie on the same straight line
  9. 16. a portion of a straight line that is bounded by two distinct, fixed endpoints and contains all the points on the line between them
  10. 18. a half-line that consists of a fixed endpoint and all the points on a line extending infinitely in one direction from that endpoint