Across
- 2. A line perpendicular to the axis of symmetry used in the definition of a parabola.
- 3. The vertex at the tip of a cone or pyramid.
- 7. A way of writing two conditionals at once: both a conditional and its converse.
- 8. a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the centre of base) called the apex or vertex.
- 10. A u-shaped curve with certain specific properties.
- 13. How close an approximation is to an actual value.
- 16. A line segment between the center and a point on the circle or sphere.
- 18. Exactly equal in size and shape.
- 20. a roughly almond-shaped mass of grey matter inside each cerebral hemisphere
- 21. A corner point of a geometric figure.
- 22. Half the difference between the minimum and maximum values of the range
- 24. a fixed point on the interior of a parabola used in the formal definition of the curve.
Down
- 1. a quadrilateral with at least one pair of parallel sides. No other features matter.
- 4. a quadrilateral that has two pairs of parallel sides.
- 5. The region between two concentric circles which have different radii.
- 6. Cut into two congruent halves.
- 9. messenger particle of the strong nuclear force, which binds subatomic particles known as quarks within the protons and neutrons of stable matter
- 11. A line segment, line, or plane that divides a geometric figure into two congruent halves.
- 12. is a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance.
- 14. The first coordinate in an ordered pair.
- 15. A word used to indicate any path, whether actually curved or straight, closed or open.
- 17. the complete set of genes or genetic material present in a cell or organism.
- 19. a 3-dimensional shape with two identical shapes facing each other. These identical shapes are called “bases”
- 23. A word for a set of points that forms a geometric figure or graph.