Across
1
Line touching circle at one point
5
Mathematical rule or equation
6
Symbol representing unknown value
7
Number divisible only by 1 and itself
Down
2
Divisible by two
3
Parts per hundred
4
Amount of space an object occupies
8
Closed shape with straight sides
9
Space between two intersecting lines
10
Collection of distinct elements
11
Distance from center to edge of circle