Across
1
Mathematical rule or equation
3
Line segment connecting two circle points
5
Math using letters for unknown values
6
Reference line in a graph
7
Part of a line with two endpoints
11
Longest side of a right triangle
15
Mathematical statement of equality
Down
2
Result of multiplication
4
Lines that never intersect
8
Divisible by two
9
Three-sided polygon
10
Middle value in an ordered dataset
12
System of ordered marks for measuring
13
Distance from center to edge of circle
14
Number divisible only by 1 and itself