Across
1
System of ordered marks for measuring
3
Line crossing from corner to corner
4
U-shaped curve of a quadratic function
7
Divisible by two
8
Difference between highest and lowest values
9
Rectangle with four equal sides
11
Power to which a number is raised
12
Corner point of a polygon
Down
2
Mathematical rule or equation
4
Parts per hundred
5
Number greater than zero
6
Sum divided by count
10
Middle value in an ordered dataset