Across
1
Round shape with all points equidistant
5
Rectangular array of numbers
6
Corner point of a polygon
8
Three-sided polygon
10
Math using letters for unknown values
11
Power to which a number is raised
Down
2
Part of a whole number
3
Split into equal parts
4
Difference between highest and lowest values
7
Part of a circle's circumference
9
Repeated addition