Across
1
Reference line in a graph
2
Mathematical rule or equation
5
Longest side of a right triangle
7
System of ordered marks for measuring
9
Mathematical statement of equality
10
Number divisible only by 1 and itself
Down
1
Math using letters for unknown values
3
Split into equal parts
4
Closed shape with straight sides
6
Value that does not change
7
Exact correspondence on both sides
8
Part of a line with two endpoints