Across
1
Result of raising a number to an exponent
3
Number greater than zero
4
Exact correspondence on both sides
5
Part of a circle's circumference
6
System of ordered marks for measuring
7
Single numeral from 0 to 9
9
U-shaped curve of a quadratic function
Down
1
Lines that never intersect
2
Symbol representing unknown value
6
Collection of distinct elements
8
Result of addition
10
Visual representation of data
11
Amount of space an object occupies