Across
1
Mathematical statement of equality
5
System of ordered marks for measuring
7
Power to which a number is raised
8
Comparison of two quantities
9
Number less than zero
10
Part of a circle's circumference
11
Steepness of a line
Down
2
Result of raising a number to an exponent
3
Line crossing from corner to corner
4
Symbol representing unknown value
5
Part of a line with two endpoints
6
Three-sided polygon