Across
1
Result of multiplication
3
Space between two intersecting lines
4
Number less than zero
6
The number representing nothing
8
Steepness of a line
9
Result of raising a number to an exponent
Down
2
Math using letters for unknown values
3
Part of a circle's circumference
5
Longest side of a right triangle
7
System of ordered marks for measuring
10
Parts per hundred