Across
1
Distance from center to edge of circle
4
Rectangle with four equal sides
6
Power to which a number is raised
7
Result of multiplication
10
Collection of distinct elements
11
Rectangular array of numbers
12
Longest side of a right triangle
Down
2
Parts per hundred
3
Mathematical rule or equation
5
Line segment connecting two circle points
7
Number divisible only by 1 and itself
8
Line crossing from corner to corner
9
Line touching circle at one point