Across
1
Rectangular array of numbers
4
Three-sided polygon
5
Result of raising a number to an exponent
6
Divisible by two
7
Comparison of two quantities
8
Part of a circle's circumference
12
Lines that never intersect
13
Line segment connecting two circle points
14
Total distance around a shape
Down
2
Math using letters for unknown values
3
Number with digits after a point
9
Difference between highest and lowest values
10
Middle value in an ordered dataset
11
Symbol representing unknown value
15
Number that divides evenly into another