Across
1
Rectangular array of numbers
4
System of ordered marks for measuring
5
Number divisible only by 1 and itself
6
Part of a line with two endpoints
7
Number with digits after a point
Down
2
Amount of space an object occupies
3
Distance from center to edge of circle
5
U-shaped curve of a quadratic function
8
Part of a circle's circumference
9
Collection of distinct elements
10
Repeated addition
11
Round shape with all points equidistant