Across
1
Part of a circle's circumference
3
Number divisible only by 1 and itself
4
Part of a whole number
5
Steepness of a line
6
Repeated addition
7
Three-sided polygon
10
Longest side of a right triangle
Down
1
Reference line in a graph
2
Value that does not change
3
Result of raising a number to an exponent
4
Number that divides evenly into another
8
Middle value in an ordered dataset
9
Exact correspondence on both sides