Across
1
Distance from center to edge of circle
4
Divisible by two
5
Power to which a number is raised
6
Rectangle with four equal sides
13
Three-sided polygon
14
Part of a whole number
15
Amount of space an object occupies
Down
2
Collection of distinct elements
3
Number greater than zero
7
Part of a circle's circumference
8
Mathematical statement of equality
9
Number that divides evenly into another
10
Closed shape with straight sides
11
Line touching circle at one point
12
Sum divided by count