Across
1
Number divisible only by 1 and itself
4
U-shaped curve of a quadratic function
5
Single numeral from 0 to 9
6
Round shape with all points equidistant
7
Result of raising a number to an exponent
10
Longest side of a right triangle
12
Divisible by two
Down
2
Power to which a number is raised
3
Rectangular array of numbers
8
Line segment connecting two circle points
9
Sum divided by count
11
Amount of space an object occupies