Across
1
Total distance around a shape
5
Steepness of a line
7
Amount of space an object occupies
8
System of ordered marks for measuring
9
U-shaped curve of a quadratic function
10
Space between two intersecting lines
Down
1
Closed shape with straight sides
2
Proven mathematical statement
3
Symbol representing unknown value
4
Number greater than zero
6
Difference between highest and lowest values