Across
1
Result of addition
3
Line touching circle at one point
4
Mathematical rule or equation
7
Line segment connecting two circle points
8
Result of raising a number to an exponent
10
Lines that never intersect
Down
2
Number with digits after a point
5
Proven mathematical statement
6
Part of a circle's circumference
8
Closed shape with straight sides
9
Difference between highest and lowest values
11
Mathematical statement of equality
12
Number less than zero
13
Power to which a number is raised