Maths crossword

8. a statement that the values of two mathematical expressions are equal
9. the science of numbers and their operations (see operation sense
11. The ........ of men to women was two to one
12. a mathematical object used to count, measure, and label
14. three sided polygon
15. (y2-y1)/(x2-x1)
16. exact reflection of form on opposite sides of a dividing line or plane
17. is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface
18. straight line touching a circle
20. I decided to show the results in a bar ....... .

1. a number whose whole number and the fractional part is separated by a decimal point
2. a plane figure with four equal straight sides and four right angles
3. something a line lacks
4. a quantity that has both magnitude and direction but not position
5. a transformation where an object maps to an image of the same shape but different size
6. a line enclosing a plane areas
7. the circular movement of an object around a centre.
10. SOH CAH TOA
13. To bring two or more numbers (or things) together to make a new total.
19. A geometric figure formed by two lines that begin at a common point or by two planes that begin at a common line.