Across
1
Round shape with all points equidistant
3
Space between two intersecting lines
4
Number less than zero
5
Symbol representing unknown value
6
Number divisible only by 1 and itself
7
U-shaped curve of a quadratic function
11
Mathematical statement of equality
12
Collection of distinct elements
Down
2
Divisible by two
3
Math using letters for unknown values
8
Corner point of a polygon
9
Split into equal parts
10
Number that divides evenly into another