Across
1
Proven mathematical statement
2
Part of a line with two endpoints
5
Difference between highest and lowest values
7
Three-sided polygon
10
Mathematical statement of equality
11
Amount of space an object occupies
Down
2
Rectangle with four equal sides
3
Line segment connecting two circle points
4
Parts per hundred
6
Middle value in an ordered dataset
8
Number with digits after a point
9
Longest side of a right triangle