Across
1
Distance from center to edge of circle
4
Three-sided polygon
7
Visual representation of data
8
Steepness of a line
9
Collection of distinct elements
11
Round shape with all points equidistant
Down
2
Number divisible only by 1 and itself
3
Number with digits after a point
5
System of ordered marks for measuring
6
Number greater than zero
10
Exact correspondence on both sides
12
Total distance around a shape
13
Line crossing from corner to corner