Across
1
Difference between highest and lowest values
2
U-shaped curve of a quadratic function
4
Amount of space an object occupies
7
Space between two intersecting lines
8
Part of a circle's circumference
9
Rectangle with four equal sides
11
Proven mathematical statement
Down
2
Result of raising a number to an exponent
3
Math using letters for unknown values
5
Distance from center to edge of circle
6
Value that does not change
10
Number greater than zero
12
Closed shape with straight sides
13
Line touching circle at one point