Across
1
Middle value in an ordered dataset
3
Proven mathematical statement
4
Line segment connecting two circle points
5
System of ordered marks for measuring
6
Line crossing from corner to corner
7
Difference between highest and lowest values
9
Round shape with all points equidistant
Down
2
Symbol representing unknown value
3
Three-sided polygon
5
Rectangle with four equal sides
8
Visual representation of data
10
Part of a circle's circumference
11
Comparison of two quantities
12
Split into equal parts