Across
1
U-shaped curve of a quadratic function
4
Parts per hundred
5
Part of a line with two endpoints
8
Amount of space an object occupies
Down
1
Number divisible only by 1 and itself
2
Repeated addition
3
Difference between highest and lowest values
6
Part of a circle's circumference
7
Mathematical rule or equation
9
Total distance around a shape
10
Split into equal parts
11
Proven mathematical statement