Across
1
Sum divided by count
3
Steepness of a line
4
Line crossing from corner to corner
5
Closed shape with straight sides
6
Mathematical statement of equality
12
Reference line in a graph
Down
2
Divisible by two
3
Part of a line with two endpoints
5
Result of raising a number to an exponent
7
Part of a circle's circumference
8
Parts per hundred
9
Math using letters for unknown values
10
Round shape with all points equidistant
11
System of ordered marks for measuring