Across
1
Round shape with all points equidistant
4
Line crossing from corner to corner
5
Exact correspondence on both sides
6
Line touching circle at one point
7
Power to which a number is raised
Down
2
Steepness of a line
3
Math using letters for unknown values
5
Rectangle with four equal sides
8
Corner point of a polygon
9
System of ordered marks for measuring
10
Divisible by two