Across
1
Lines that never intersect
4
Single numeral from 0 to 9
5
Amount of space an object occupies
6
Number that divides evenly into another
7
Part of a line with two endpoints
9
Three-sided polygon
Down
2
Middle value in an ordered dataset
3
Power to which a number is raised
5
Symbol representing unknown value
8
Rectangle with four equal sides
10
Difference between highest and lowest values