Across
1
Symbol representing unknown value
5
Single numeral from 0 to 9
6
Closed shape with straight sides
7
Line segment connecting two circle points
8
Divisible by two
9
Parts per hundred
10
Power to which a number is raised
Down
2
Space between two intersecting lines
3
Result of raising a number to an exponent
4
Longest side of a right triangle
11
Round shape with all points equidistant