Across
1
Reference line in a graph
4
Corner point of a polygon
5
Power to which a number is raised
9
Middle value in an ordered dataset
10
Proven mathematical statement
11
System of ordered marks for measuring
Down
2
Line touching circle at one point
3
Collection of distinct elements
4
Symbol representing unknown value
6
Sum divided by count
7
Visual representation of data
8
Result of raising a number to an exponent
12
Closed shape with straight sides
13
Space between two intersecting lines