Across
1
Exact correspondence on both sides
2
Corner point of a polygon
5
System of ordered marks for measuring
6
Parts per hundred
7
Reference line in a graph
8
Number divisible only by 1 and itself
10
Repeated addition
Down
1
Collection of distinct elements
2
Amount of space an object occupies
3
Power to which a number is raised
4
Symbol representing unknown value
9
Visual representation of data
11
Difference between highest and lowest values
12
Round shape with all points equidistant