Across
1
Part of a circle's circumference
3
Longest side of a right triangle
7
Steepness of a line
9
Split into equal parts
10
Value that does not change
Down
2
Visual representation of data
4
System of ordered marks for measuring
5
Repeated addition
6
Symbol representing unknown value
8
Number divisible only by 1 and itself
11
Comparison of two quantities
12
Result of multiplication