algebra 1

3. A line on which numbers can be written or visualized.
6. The perimeter of a circle is called
8. An increase in size in all directions by a uniform amount.
9. 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.
11. he shape made by two rays extending from a common end point, the vertex.
13. A graph having definable limits.
16. The line or plane upon which a figure is thought of as a resting.
17. The inside region of a two-dimensional figure measured in square units
19. The length of the boundary around a figure.
20. A straight line that is endless in length

1. The point at which two lines meet.
2. One of the plane surfaces bounding a three-dimensional figure
4. The order in which two numbers are added or multiplied does not change their sum or product
5. Figures or objects that are the same shape and the same size.
7. the use of rounding and/or other strategies to determine a reasonably accurate approximation,
10. The arithmetic average of a set of ordered numbers where half of the numbers are above the median and half are below it.
12. A network of evenly spaced, parallel horizontal and vertical lines.
14. A proposition or supposition developed to provide a basis for further investigation or research.
15. A line segment from any point on the circle passing through the center to another point on the circle.
18. The middle point of a set of ordered numbers where half are below it.