Across
1
Rectangle with four equal sides
3
Part of a whole number
6
Reference line in a graph
7
Three-sided polygon
10
Comparison of two quantities
11
Result of raising a number to an exponent
12
Closed shape with straight sides
Down
1
Steepness of a line
2
Math using letters for unknown values
4
Value that does not change
5
Number that divides evenly into another
8
System of ordered marks for measuring
9
Part of a line with two endpoints