Across
1
Line crossing from corner to corner
4
Result of multiplication
6
Rectangle with four equal sides
7
Part of a whole number
8
The number representing nothing
11
Exact correspondence on both sides
Down
2
Result of raising a number to an exponent
3
Comparison of two quantities
5
Line touching circle at one point
9
Distance from center to edge of circle
10
Line segment connecting two circle points
12
Number with digits after a point
13
Part of a circle's circumference