Across
1
Parts per hundred
5
Closed shape with straight sides
7
Proven mathematical statement
9
U-shaped curve of a quadratic function
10
Split into equal parts
11
Symbol representing unknown value
12
Space between two intersecting lines
Down
2
Sum divided by count
3
Steepness of a line
4
Number that divides evenly into another
6
Amount of space an object occupies
8
Rectangular array of numbers