Across
1
Three-sided polygon
5
Comparison of two quantities
6
Steepness of a line
8
U-shaped curve of a quadratic function
9
Parts per hundred
10
Math using letters for unknown values
Down
1
Line touching circle at one point
2
Space between two intersecting lines
3
Line crossing from corner to corner
4
Number that divides evenly into another
6
Rectangle with four equal sides
7
The number representing nothing
11
Closed shape with straight sides
12
Mathematical rule or equation