Across
1
Part of a circle's circumference
3
Proven mathematical statement
4
Lines that never intersect
5
System of ordered marks for measuring
6
Collection of distinct elements
8
Number less than zero
10
Mathematical statement of equality
Down
1
Reference line in a graph
2
Result of raising a number to an exponent
4
Number greater than zero
5
Exact correspondence on both sides
7
Round shape with all points equidistant
9
Value that does not change