Across
1
Mathematical statement of equality
3
Exact correspondence on both sides
4
Round shape with all points equidistant
6
Number that divides evenly into another
7
Result of multiplication
8
Part of a line with two endpoints
Down
1
Power to which a number is raised
2
Space between two intersecting lines
3
Steepness of a line
5
Collection of distinct elements
9
Proven mathematical statement