# maths

##### Across
1. 7. / The sum of the lengths of the sides of a polygon
2. 10. / The middle number in a data set when the data are put in order
3. 11. / A positive angle measuring less than 90 degrees
4. 14. / The value of a variable that makes an equation true
5. 15. /
6. 16. / measured in degrees
7. 18. / The distance from the center to a point on a circle
8. 20. / The steepness of a line expressed as a ratio, using any two points on the line
9. 21. / The point on an angle where the two sides intersect
##### Down
1. 1. / Points that lie on the same line
2. 2. / identical double
3. 3. root / the number which, if multiplied by itself gives you the original number
4. 4. / The top part of a fraction
5. 5. / In a data set, the sum of all the data points, divided by the number of data points; average
6. 6. / The number which, when multiplied times a particular fraction, gives a result of 1
7. 8. / A type of numbers used to count
8. 9. / A point on a line segment that divides the segment into two congruent segments
9. 12. / A type of number that can be expressed as the ratio of two integers
10. 13. / A parallelogram with four equal sides
11. 17. / A type of natural number that is divisible by 2
12. 19. / The ten symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9