Across
1
Result of raising a number to an exponent
4
Divisible by two
6
Round shape with all points equidistant
9
Result of addition
10
Distance from center to edge of circle
11
Repeated addition
Down
1
U-shaped curve of a quadratic function
2
Part of a circle's circumference
3
The number representing nothing
5
Collection of distinct elements
7
Middle value in an ordered dataset
8
Proven mathematical statement