Across
- 1. a round solid figure, or its surface, with every point on its surface equidistant from its centre.
- 3. a straight line from the centre to the circumference of a circle or sphere.
- 6. lines in a plane or higher-dimensional space which intersect at a single point.
- 8. circle a circle that passes through all three vertices.
- 10. a solid or hollow object which tapers from a circular or roughly circular base to a point
- 13. the space (usually measured in degrees) between two intersecting lines or surfaces at or close to the point where they meet.
- 14. each angular point of a polygon, polyhedron, or other figure.
- 15. a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles
Down
- 2. a 3-d solid shape that has 6 rectangular faces in which all the pairs of opposite faces are congruent.
- 4. a quadrilateral with opposite sides parallel to each other
- 5. a line or a line segment that divides an interior angle (of a triangle) into two equal angles
- 7. a type of triangle that has one of its angles equal to 90 degrees
- 9. made up of exactly similar parts facing each other or around an axis; showing symmetry.
- 11. the longest side of a right-angled triangle, oppposite the right angle
- 12. A staight line passing trough the center of a circle to touch both side of the circumference