Across
1
Mathematical rule or equation
3
Divisible by two
5
Longest side of a right triangle
8
Parts per hundred
10
Sum divided by count
12
Distance from center to edge of circle
13
Mathematical statement of equality
Down
2
Three-sided polygon
4
Amount of space an object occupies
6
Number with digits after a point
7
Middle value in an ordered dataset
9
Collection of distinct elements
11
Steepness of a line