Across
1
Split into equal parts
3
Exact correspondence on both sides
4
Mathematical rule or equation
6
Lines that never intersect
8
Result of addition
9
Corner point of a polygon
12
Total distance around a shape
14
The number representing nothing
Down
1
Number with digits after a point
2
Longest side of a right triangle
5
Amount of space an object occupies
7
Proven mathematical statement
10
U-shaped curve of a quadratic function
11
Collection of distinct elements
13
Reference line in a graph