Across
1
Value that does not change
5
Total distance around a shape
6
Divisible by two
7
Part of a line with two endpoints
8
Collection of distinct elements
10
U-shaped curve of a quadratic function
Down
1
Round shape with all points equidistant
2
Lines that never intersect
3
Line touching circle at one point
4
Parts per hundred
7
Result of addition
9
Split into equal parts