Across
1
Line segment connecting two circle points
3
Total distance around a shape
4
Middle value in an ordered dataset
9
U-shaped curve of a quadratic function
10
Result of multiplication
11
Round shape with all points equidistant
13
Parts per hundred
Down
2
Line crossing from corner to corner
5
Single numeral from 0 to 9
6
Three-sided polygon
7
The number representing nothing
8
Divisible by two
12
Part of a circle's circumference
14
Visual representation of data
15
Part of a line with two endpoints