Across
1
Corner point of a polygon
3
Visual representation of data
4
Line crossing from corner to corner
5
Lines that never intersect
6
Mathematical rule or equation
7
Result of multiplication
8
Closed shape with straight sides
10
Exact correspondence on both sides
13
Divisible by two
Down
1
Symbol representing unknown value
2
Number greater than zero
5
Total distance around a shape
9
Amount of space an object occupies
11
Sum divided by count
12
Math using letters for unknown values