Across
1
Power to which a number is raised
6
Part of a circle's circumference
8
System of ordered marks for measuring
9
Three-sided polygon
10
Mathematical statement of equality
11
Comparison of two quantities
Down
2
Split into equal parts
3
Result of raising a number to an exponent
4
Corner point of a polygon
5
The number representing nothing
6
Sum divided by count
7
Longest side of a right triangle