Across
1
Line touching circle at one point
4
Round shape with all points equidistant
6
Reference line in a graph
7
Divisible by two
10
Result of multiplication
13
Sum divided by count
14
Amount of space an object occupies
Down
2
System of ordered marks for measuring
3
Steepness of a line
5
Collection of distinct elements
8
Three-sided polygon
9
Rectangular array of numbers
11
Visual representation of data
12
Power to which a number is raised
15
Closed shape with straight sides