Across
1
Number with digits after a point
4
Total distance around a shape
5
Distance from center to edge of circle
6
Difference between highest and lowest values
9
Divisible by two
10
Three-sided polygon
11
Round shape with all points equidistant
Down
1
Line crossing from corner to corner
2
Steepness of a line
3
U-shaped curve of a quadratic function
4
Number greater than zero
7
Visual representation of data
8
Symbol representing unknown value
12
System of ordered marks for measuring