Across
1
Number divisible only by 1 and itself
3
Corner point of a polygon
4
Part of a line with two endpoints
5
Math using letters for unknown values
8
Total distance around a shape
9
Comparison of two quantities
Down
2
Mathematical statement of equality
3
Symbol representing unknown value
4
Rectangle with four equal sides
6
Repeated addition
7
Steepness of a line
10
Lines that never intersect
11
Power to which a number is raised
12
Number less than zero