Across
1
Middle value in an ordered dataset
3
Corner point of a polygon
4
Rectangle with four equal sides
5
System of ordered marks for measuring
6
Total distance around a shape
7
Steepness of a line
8
Three-sided polygon
9
Power to which a number is raised
Down
2
Part of a line with two endpoints
3
Symbol representing unknown value
6
Parts per hundred
10
Mathematical rule or equation