algebra 1

4. The arithmetic average of a set of ordered numbers where half of the numbers are above the median and half are below it.
7. The point at which two lines meet.
8. A line segment from any point on the circle passing through the center to another point on the circle.
12. A line on which numbers can be written or visualized.
14. The inside region of a two-dimensional figure measured in square units
15. The middle point of a set of ordered numbers where half are below it.
17. The order in which two numbers are added or multiplied does not change their sum or product
18. he shape made by two rays extending from a common end point, the vertex.
19. A line segment extending from the vertex or apex of a figure to its base and forming a right angle with the base or basal plane.
20. A straight line that is endless in length

1. the use of rounding and/or other strategies to determine a reasonably accurate approximation,
2. A proposition or supposition developed to provide a basis for further investigation or research.
3. The line or plane upon which a figure is thought of as a resting.
5. The perimeter of a circle is called
6. One of the plane surfaces bounding a three-dimensional figure
9. A network of evenly spaced, parallel horizontal and vertical lines.
10. The length of the boundary around a figure.
11. An increase in size in all directions by a uniform amount.
13. A graph having definable limits.
16. Figures or objects that are the same shape and the same size.