Across
- 1. a flat shape with four sides, none of which are parallel
- 3. the mathematical representation of a wave, especially a graph obtained by plotting a characteristic of the wave against time
- 5. a flat shape with six sides of the same length
- 9. to discover an amount or number using mathematics
- 10. a mathematical statement with three numbers or variables (= mathematical symbols)
- 12. a flat shape that has four sides. The two sets of opposite sides are parallel and of equal length to each other
- 14. if two amounts are proportional, they change at the same rate so that the relationship between them does not change
- 15. describes a shape in mathematics that has the same shape and size as another
- 16. a flat shape with four straight sides
- 17. a method of writing numbers as the product of their factors or divisors
- 19. a flat shape with three or more straight sides
- 20. to find the answer to something
Down
- 2. at an angle of 90 degrees to something
- 4. the size of a flat surface calculated by multiplying its width by its length
- 6. the answer to a problem
- 7. a generalized function used in the study of partial differential equations
- 8. changing often
- 11. a type of mathematics that deals with the relationship between the angles and sides of triangles
- 13. a unit for measuring length, equal to 0.001 metres
- 17. is a special relationship between values: Each of its input values gives back exactly one output value
- 18. a triangle with two sides of equal length