Across
1
Steepness of a line
3
Split into equal parts
5
Line segment connecting two circle points
6
Math using letters for unknown values
7
Total distance around a shape
8
Line touching circle at one point
Down
2
Result of multiplication
3
Number with digits after a point
4
Distance from center to edge of circle
9
Round shape with all points equidistant
10
Three-sided polygon
11
Collection of distinct elements