Across
1
Longest side of a right triangle
5
Distance from center to edge of circle
6
Repeated addition
9
Line segment connecting two circle points
10
Lines that never intersect
11
Sum divided by count
Down
2
Part of a line with two endpoints
3
Amount of space an object occupies
4
Total distance around a shape
7
Exact correspondence on both sides
8
Visual representation of data
12
Line crossing from corner to corner
13
Split into equal parts