Across
1
U-shaped curve of a quadratic function
4
Round shape with all points equidistant
5
Proven mathematical statement
6
Divisible by two
7
Rectangular array of numbers
Down
2
Corner point of a polygon
3
Number with digits after a point
8
Three-sided polygon
9
Split into equal parts
10
Result of multiplication
11
Rectangle with four equal sides
12
Reference line in a graph