Across
1
Number divisible only by 1 and itself
4
Part of a line with two endpoints
5
Part of a circle's circumference
6
Visual representation of data
9
Symbol representing unknown value
10
Space between two intersecting lines
11
Line touching circle at one point
12
Rectangular array of numbers
Down
2
Round shape with all points equidistant
3
Repeated addition
7
Number with digits after a point
8
Amount of space an object occupies
10
Math using letters for unknown values