Across
1
Part of a circle's circumference
3
Round shape with all points equidistant
4
Parts per hundred
5
Collection of distinct elements
6
Amount of space an object occupies
7
Part of a line with two endpoints
9
Rectangular array of numbers
10
Difference between highest and lowest values
Down
2
Proven mathematical statement
5
Rectangle with four equal sides
7
System of ordered marks for measuring
8
Closed shape with straight sides