Coordinate Geometry Vocabulary

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Across
  1. 4. When three or more points lie on the same line.
  2. 5. A triangle having two sides of the same length and hence two angles of the same size.
  3. 7. A straight line or plane that touches a curve or curved surface at a point.
  4. 8. A quadrilateral whose opposite sides are both parallel and equal in length.
  5. 11. A straight line connecting two points on a curve.
  6. 13. The longest chord in a circle.
Down
  1. 1. When two objects intersect at a right angle.
  2. 2. To cut in half.
  3. 3. A triangle having all three sides of the same length and hence all three angles of 60 degrees each.
  4. 6. A triangle having three sides of different lengths and hence three angles of different size.
  5. 9. The perpendicular distance from the base of a geometric figure to the opposite vertex.
  6. 10. A line segment from the vertex of a triangle to the midpoint of the opposite side.
  7. 12. A parallelogram with four equal sides.