Across
1
Number with digits after a point
5
Rectangle with four equal sides
8
Comparison of two quantities
9
Difference between highest and lowest values
11
Lines that never intersect
Down
2
Corner point of a polygon
3
Three-sided polygon
4
Number that divides evenly into another
6
Longest side of a right triangle
7
Part of a whole number
10
Round shape with all points equidistant
12
Mathematical rule or equation