Across
1
Line segment connecting two circle points
4
Corner point of a polygon
5
Number greater than zero
9
Parts per hundred
11
Reference line in a graph
12
Power to which a number is raised
Down
2
Longest side of a right triangle
3
Part of a whole number
6
Split into equal parts
7
Rectangular array of numbers
8
U-shaped curve of a quadratic function
10
Closed shape with straight sides