Across
- 1. branch of mathematics concerned with relationships between angles and side lengths of triangles
- 6. In a circle it is any of the line segments from its center to its perimete
- 10. the covering of a surface, often a plane, using one or more geometric shapes, called tiles
- 12. a²+b²=c²
- 13. trigonometric functions of an angle
- 14. In geometry it is a nine-sided polygon
- 15. the measure of a region's size on a surface
- 16. polygon with 1000 sides.
Down
- 2. a quadrilateral whose four sides all have the same length
- 3. simple type of technical drawing of graphical projection used for producing two-dimensional images of three-dimensional objects.
- 4. 3 lines that have a common point of intersection
- 5. flat, irregular, potato-like surface
- 7. continuous flat geometric figure composed entirely of triangles
- 8. angle less than 90°
- 9. a line segment joining two vertices of a polygon
- 11. two quantities are in the [word] if their ratio is the same as the ratio of their sum to the larger of the two quantities