Across
1
Proven mathematical statement
5
Math using letters for unknown values
6
Collection of distinct elements
7
Closed shape with straight sides
11
Distance from center to edge of circle
Down
2
Number less than zero
3
Difference between highest and lowest values
4
Result of raising a number to an exponent
5
Reference line in a graph
8
Round shape with all points equidistant
9
Three-sided polygon
10
Corner point of a polygon
12
Power to which a number is raised