Across
1
Number with digits after a point
3
U-shaped curve of a quadratic function
5
Three-sided polygon
8
Distance from center to edge of circle
Down
2
Corner point of a polygon
3
Total distance around a shape
4
Part of a circle's circumference
5
Proven mathematical statement
6
Line crossing from corner to corner
7
Part of a line with two endpoints
9
Number greater than zero
10
Reference line in a graph
11
Middle value in an ordered dataset