Across
1
Value that does not change
5
Line segment connecting two circle points
6
Three-sided polygon
7
Part of a line with two endpoints
10
Visual representation of data
11
Comparison of two quantities
12
Difference between highest and lowest values
Down
2
Result of raising a number to an exponent
3
Symbol representing unknown value
4
Single numeral from 0 to 9
8
Lines that never intersect
9
Line crossing from corner to corner
13
Corner point of a polygon