Across
1
Lines that never intersect
5
Sum divided by count
7
System of ordered marks for measuring
8
Number less than zero
9
Round shape with all points equidistant
14
Power to which a number is raised
Down
2
Longest side of a right triangle
3
Result of multiplication
4
Parts per hundred
6
Closed shape with straight sides
10
Total distance around a shape
11
Number divisible only by 1 and itself
12
Proven mathematical statement
13
Comparison of two quantities