Across
1
Result of addition
3
U-shaped curve of a quadratic function
5
Line touching circle at one point
6
Divisible by two
8
Mathematical statement of equality
9
Part of a circle's circumference
Down
2
Reference line in a graph
4
Space between two intersecting lines
5
Three-sided polygon
7
Middle value in an ordered dataset
10
Number with digits after a point
11
Collection of distinct elements