Across
1
Three-sided polygon
3
Result of addition
7
Proven mathematical statement
8
Round shape with all points equidistant
9
Repeated addition
11
Visual representation of data
13
Number that divides evenly into another
Down
2
Longest side of a right triangle
4
Divisible by two
5
Lines that never intersect
6
Comparison of two quantities
8
Line segment connecting two circle points
10
Part of a line with two endpoints
12
Amount of space an object occupies