Across
1
Line touching circle at one point
2
Number with digits after a point
4
Result of raising a number to an exponent
6
Lines that never intersect
7
Result of addition
9
Part of a circle's circumference
10
Power to which a number is raised
Down
1
Proven mathematical statement
2
Split into equal parts
3
Three-sided polygon
5
Number less than zero
7
Rectangle with four equal sides
8
Difference between highest and lowest values
11
Rectangular array of numbers