Across
1
System of ordered marks for measuring
5
Line segment connecting two circle points
6
Power to which a number is raised
7
Number divisible only by 1 and itself
8
Single numeral from 0 to 9
9
Number that divides evenly into another
10
Comparison of two quantities
11
Number less than zero
12
Parts per hundred
Down
2
Line touching circle at one point
3
Longest side of a right triangle
4
Total distance around a shape
13
Distance from center to edge of circle