Across
1
Line segment connecting two circle points
3
Number greater than zero
7
Rectangle with four equal sides
9
Parts per hundred
10
Value that does not change
11
Corner point of a polygon
12
Power to which a number is raised
Down
2
Difference between highest and lowest values
4
Split into equal parts
5
Three-sided polygon
6
Mathematical statement of equality
8
Result of multiplication
13
U-shaped curve of a quadratic function