Across
1
Amount of space an object occupies
4
Line crossing from corner to corner
5
Distance from center to edge of circle
7
Parts per hundred
10
Corner point of a polygon
Down
2
Rectangle with four equal sides
3
Closed shape with straight sides
6
Mathematical statement of equality
7
Number divisible only by 1 and itself
8
Line touching circle at one point
9
Lines that never intersect
11
Total distance around a shape
12
Difference between highest and lowest values