Across
1
Corner point of a polygon
5
Amount of space an object occupies
6
Steepness of a line
7
Line crossing from corner to corner
8
Space between two intersecting lines
9
Part of a circle's circumference
12
Total distance around a shape
Down
2
Number less than zero
3
Result of multiplication
4
Power to which a number is raised
6
System of ordered marks for measuring
9
Math using letters for unknown values
10
Line segment connecting two circle points
11
Part of a whole number