Across
1
Closed shape with straight sides
2
Rectangular array of numbers
3
Reference line in a graph
5
Distance from center to edge of circle
6
Round shape with all points equidistant
7
Part of a line with two endpoints
8
Comparison of two quantities
Down
1
Result of raising a number to an exponent
2
Middle value in an ordered dataset
4
Number with digits after a point
9
Number divisible only by 1 and itself