Across
1
Math using letters for unknown values
5
Round shape with all points equidistant
7
Lines that never intersect
8
Result of raising a number to an exponent
9
Reference line in a graph
11
Parts per hundred
12
Repeated addition
13
Space between two intersecting lines
14
Result of multiplication
Down
2
System of ordered marks for measuring
3
Part of a line with two endpoints
4
Part of a whole number
6
Total distance around a shape
10
Mathematical rule or equation
11
U-shaped curve of a quadratic function