Across
1
Line segment connecting two circle points
3
Space between two intersecting lines
4
Amount of space an object occupies
5
Parts per hundred
6
Lines that never intersect
8
Total distance around a shape
9
Result of addition
10
Reference line in a graph
Down
1
Value that does not change
2
The number representing nothing
6
U-shaped curve of a quadratic function
7
Split into equal parts
9
Steepness of a line