Across
1
Parts per hundred
4
Rectangle with four equal sides
6
Round shape with all points equidistant
7
Symbol representing unknown value
8
Closed shape with straight sides
11
Power to which a number is raised
Down
2
Space between two intersecting lines
3
Corner point of a polygon
5
Three-sided polygon
7
Amount of space an object occupies
9
Visual representation of data
10
Exact correspondence on both sides