Across
1
Longest side of a right triangle
6
Line touching circle at one point
7
System of ordered marks for measuring
8
Number with digits after a point
9
Part of a line with two endpoints
10
Power to which a number is raised
11
Middle value in an ordered dataset
Down
2
Result of addition
3
Round shape with all points equidistant
4
Value that does not change
5
Mathematical statement of equality
12
Repeated addition